How soon are you safe after starting birth control pills

Q: I was previously on birth control for almost 2 years and in the middle of April I stopped taking birth control pills. At the begining of June I started back on birth control again. Is it safe to have protected sex now with just the pill and without using another form of birth control, or do I have to wait an entire month after starting on birth control?

A: You will be protected from getting pregnant after 7 days of consistent use of birth control pills.  Consistent use means that you’re taking the pill every day at the same time (plus or minus 2 hours).  So basically, one week of birth control pills is enough to put the ovaries to sleep and keep you from getting pregnant.

However, having the phrases “protected sex” and “without using another form of birth control” in the same sentence makes us a little nervous.  We can not stress enough that birth control pills (or patches or shots or IUD’s) only protect you from getting pregnant.  They do NOT protect you from contracting sexually transmitted infections such as HIV, syphillis, gonorrhea, chlamydia, HPV, etc.  So please, please, please make sure that you are using other forms of barrier protection (condoms, dental dams) to protect yourself from contracting an STI.

Any Ohio State student (even thsoe without Student Health Insurance) can be seen at Student Health Women’s Services.  We now have 3 full-time health care providers (1 doctor and 2 nurse practitioners) who are available to consult with you for any concerns related to your reproductive health.  We encourage you to see us during your time at Ohio State wo we can help you maximize your health!

Li-Chun Liu, CNP – Ohio State Student Health Services

280 thoughts on “How soon are you safe after starting birth control pills

  1. I am taking pills for 6 years that is the age also of my first born. Last week that was sunday Feb.18 was my last period,then i have no time to buy a new pack then we had contact Feb.26 sunday 1 week ti be exact. This morning Feb.27. I took immediately the first tablet of a new pill then this night will be the second tablet. He finished in me,now i’m worried,can i get pregnant?Thank you if ypu cal help me. GodBless

  2. I’ve been having unprotected sex and my partner and I felt that I should get on birth control but im scared of some of the side effects I’ve been reading online. What has the experience been like for you?

    • For me I had SPLITTING migraines it was horrible the first month my migraines made me sound sensitive and all that but after the first month all of that goes away:)

  3. I started the pill January and finished the first pack, my period just ended and started a new pack, day 2 of my period my partner came in me. Do I take a plan B or am I safe ?(from pregnancy)

  4. Hi everyone. Im a bit nervous beacause im on my second pack (5th pill) of althea pills. My bf and i had unprotected contact this march 16-18 (he finished inside me a lot of times). Ive been taking my pill the exact time. No missed pill. But im still worried. Should i get pregnant? Is there a limit of having unprotected sex while using bcp?

  5. So I’ve been taking the pill for a little over a year now. Last week I had my period like normal and then started back in my new pack of birth control like I’m supposed to (the pack started on Sunday March 19th). I had sex on Monday morning (March 20th). I had taken the pill like normal but we didn’t use a condom and he came in me. It’s been 3 days (it’s March 23rd) since then and he’s very worried. I don’t feel like I am, by could I be pregnant? My pill is Blisovi FE (generic for Microgestin FE 1.5-30 TAB).

  6. I have taken the minigynon for two months however the first month I take them on time and miss a few which wasn’t taken on time..but then the second month I started the pack right after without taking a 7 day break however for the second month I didn’t take them on time and I didn’t even take them time right like I wouldn’t remember to take the pill and the next day I would take two and resume to my original time taking them but I just didn’t take them on time or properly for month 2 the pack finish and I had my period and I had sex about two week after my period without any protection and my partner ejaculate in me and I didn’t get an emergency pill will I get pregnant?

  7. Hi,
    My contraceptive pill got discontinued so this month I’m starting a different one. The new pack says that if my current pill is a 28 day pill I should ignore the placebo pills and start the new one the day after the last active pill. The problem is that I already took 2 pills from the placebo week. So when should I start the new pack now? At the end of the placebo pills? or should I stop the placebo pills now and start the new pack? or should I wait for my “period” first day to start which should be in 2 days? I’m so confused HELP!

  8. I skipped three days of my birth control(week 2) and had unprotected sex . So I took plan b. Do I wait for my period and then start a new pack ? Or do I Continue the pack right after plan b or start a new pack right Now? Help ! I took the pill 03-26-17

  9. i want to ask this bcoz im worried,i had stop taking pills last jan.nd i hve did a’unprotective sex wth my bf this, mnth of march my menstration day come alwys on the 12 of the mnth nd last i did that unprotectve sex was 26 of march,do i will get pregnant?

  10. I stopped taking my pills for a week then had unprotected sex, then I started my pill for a week and he came in me on the third day, can I be pregnant?

    • I did kinda the same thing, I was on the pill correctly but I missed it the day before I had sex and then I started again the day I had sex, so like?? Are you pregnant? Wassup? I’m extremely nervous.

  11. I’ve been taking birth control for a week for prolonged bleeding and it really makes me feel bad. I don’t like it I’m going to stop. Will my menstrual come back.

  12. What if you have unprotected vaginal intercourse complete with ejaculating inside, on the SEVENTH day?? I’m fuzzy on that since it’s right on the cusp… Took the pill starting on Sunday after my period, took all pills Sunday to Saturday. Saturday afternoon tho was unprotected sex as explained above. What is the professional opinion on that?

  13. I have unprotected sex 4 days after my injection. Will I get pregnant? I have been using pills a week prior to using injectables. please reply.

  14. I have been on birth control for four years but I stopped taking it around November of 2015 and started back up the end of January 2017 so I guess a little less then 3 years I’ve been on bc. I didn’t get a period the whole time I wasn’t taking the pill and in January my doctor gave me pills to make me get my period and a 91 day pack of bc. I’m in the third month of that now. I missed two pills over the course of a week and then caught all of my pills back up. A couple days later I had sex, he pulled out and I took emergency contraception the next day and continued with my birth control. Could I still be pregnant? It’s been 11 days.

  15. I wasnt in a relationship for the past 2 yrs, so there was no need for contraceptive. I am now in a relationship. I had unprotected sex last Tuesday, i took the Postonor2 the next day. On Thursday of the same week i stared taking the minigynon contraceptive and had unprotected sex again that night. What are my chances of getting pregnant.

  16. I start the pill 3 day after my period had finished, meanwhile i Had unprotected sex two day before the pill and have been having sex even since. Am I protect or I’m not ?

  17. I start the pill 3day after my period has finished, and I had sex 2 day after my period on and on am I protect or am I not

  18. How about I started birth control 3 months ago and I’m still taking it, and I did sex days ago, do I have a chance on getting pregnant?

  19. I’ve missed three days and I threw out my packet and started a new one. Should I be okay? Also I take my pills at 11:30pm, am I taking the pill to late at night?

  20. I got the shot 5 days ago. But my boyfriend accidentally cam inside me. Is it that bad that It wasn’t 7 days? What are the chances of getting pregnant?

  21. Hi, hope someone can help me.ive been started using bc pills on the friday 12 may on the last day of my period however I took the pills only 3 times on saturdy and tuesday 16th may and then stopped. I hated the side effects which came with the pill such as prolong headache and nausea each time I took it so I decided to stop. However on sundy 21st may I started having cramps and started to bleed but it did not look like my normal period.on monday 22nd may which is suppose to be my ovulation day I had unprotected sex wt my bf and he ejaculated I told him it was okay as I thought I was having my period. However later learn that there is such a thing called withdrawal bleeding. The bleeding only lasted for 3dys. Now im worried, was taking the pill 3 times that effective to prevent ovulation? Am I pregnant?

  22. Hello! I’m on my 5th day of taking the pill. I ovulated on the 27th of May and I had unprotected sex today but my boyfriend never finishes inside me. He pulls out and ejaculates in a tissue. We use this method efficiently. My cervical mucus has been sticky and chunky like but not as chunky as it would be if I had a yeast infection. Possibility of being pregnant?

  23. This is different from what u guys are asking
    But im going on a trip with my family and i have to take 5 of my birth control pills and my family doesnt know that i take them and i dont want any of the people that work there to check them in front of my family also i will probably put them in my purse i have the 21 ones so i will just cut the 5 ones and idk in which bag is better the one i will carry on or the one that will go on the airplane

  24. I was on oral contaceptives for 3 months then i stopped , now 7 months later ive been using the same pill for the passed 8 days and last night i had unprotected sex . will I fall pregnant??

  25. I started the pill about a month ago now, and my pack only brought the 21 active pills, so I took them.. little after I got my period.. while I was on it I didn’t take it since I didn’t have the inactive pills… I just started my second pack on Sunday and Thursday my boyfriend and I had sex and he came inside me, could I be pregnant ? Need answers please !

    • If you have been taking your birth control consistently for over a month, without missing a day, you have followed the manufacturers recommendations and should be fine.

  26. Hi. I’ve been on BC for about roughly 4-5 years now, I’m taking estrogen 2.5 maybe something like that. I recently skipped 3 days of the pill one week after my menstrual cycle, and I had unprotected sex last night, is it possible for me to be pregnant? Or is the BC in my system deep already? Heeelpppp!

  27. Hi, im in my period for 3 days and i thought i finished on that day,i had sex with my boyfriend on that day and at the 1st and 3rd time he pull it out but on the 4th round he nevr pull out, then after 3 days i took a pill, am i safe??

  28. Your comment is awaiting moderation.
    Hi, im in my period for 3 days and i thought i finished on that day,i had sex with my boyfriend on that day and at the 1st and 3rd time he pull it out but on the 4th round he nevr pull out, then after 3 days i took a pill, am i safe??

  29. I started the pill after my period, on the 7th day i had unprotected sex, he did not finish inside of me but i am just worried if i could get pregnant. Help??

  30. I’m on a birth control pill for two months. At first month I used Cybelle and then on the second month i bought althea but i did not start it right away after the 7 pill free days. I took my first althea pill last june 30 and had unprotected sex last july 15. Is there any chance of getting pregnant? I took my pills on time everyday and no missed pills. I expect that my period will come on july 20 but it is july 23 now and still I’m not having my period.

  31. I’m on my second month of using contraceptive pills. I first used cybelle but on the 2nd month i used althea. I did not start althea pills right after the 7 pill free days. I started the first althea pills last june 30. Lasy july 15, me and my boyfriend had an unprotected sex and he came inside me.
    On my period calendar my period should be on july 20. But it is july 23 now and still I don’t have my period.
    Am I pregnant or it is just an effect of not starting the pills right after the 7 pill free days or just an effect of changing my pills.

  32. 2 weeks before, I bought a pack of pill and tried to start taking it. Unable to bear the side effects on the first intake, I stopped and 2 days after, I had premature withdrawal bleeding. I was okay with that, because it only felt like I just had a regular period. I planned to throw the pack and not use it anymore, but I ended up not throwing it anyway lol. Now, I had sex and my boyfriend ejaculated in me on purpose! I had to take emergency contraception and that pack of pill was there, so I took the day 2 pill 4 hours after we did it. Am I still safe? How much is the chance of getting pregnant in my case?

  33. I am currently on Tricera Lo 28 birth control pills for 10 months. I take it consistent everyday but met this guy had sex he came inside me. I scooped it all out and cleaned myself in the bathroom. But that night I took the pill 10 minutes early, it was an active pill. Also remember having a drink an hour later from that and saw the guy at 12 midnight. Is it possible I can get pregnant?

  34. I got on the pill and took it for 18 days and stopped because I started bleeding heavier than any other period and even heavier than after childbirth. How long does it take to fully get out of your system if I haven’t taken it that long?

  35. Hi im a 20 year old who for the first time ever started taking the birth control pill. I used other methods for protection. I have taken the pill at the same time every day. Im on the 12 day today. Things happened so my partner finished in me. Should i be worried?

    • If you have taken the pill consistently for 12 days, then you have met the manufacturers recommendation and should be protected against pregnancy.

  36. I recently just got mirena taking out because it was 5 years in. They gave a years worth of b.c. pills. After talking it over with my bf we decided we’d try for a baby or at least not take anything to prevent. Anyways after he pulled out the other night well 4 nights ago i took it offensively(like ok you dont want a baby) and took 1 pill the first pill in the first pack of pills. Now we had sex last night he came inside me( yay i think )but could that one pill i took stop me from getting pregnant all month??

  37. Okay me and my fiancé had well unprotected sex last night and she hasn’t been takeing her birth control pills for the last four or three maybe five days she said to me and after me cumming in her with in like 10 or 15 minutes of doing it she took one what do I do now???

  38. August 11, 2017 I had my period. Got on the pill Thursday august 18. They told me to take it since I was behind and to start on that day. Period came September 3, ended the 8th. Stopped my pills Saturday the 9th. Had unprotected sex Monday September 11th, and you know the rest. What are my chances, possibly could get pregnant or I’m koo? Either or I’m fine with it . Help thanks

  39. I started birth control pills (Yasmin) in the middle of my period (I was on day 4), this was on Tuesday, today is Friday, so it is my 4th day on the pill. I took yesterday’s pill 10 minutes late, which I’ve read isn’t that big a deal. Am I protected from pregnancy yet? If not, how long should I wait to have unprotected sex? Internet says 7 days, my pharmacist said a month since I started in the middle of my period and NOT on the first day of my period.

  40. Hi. I’ve been taking birth control pills for almost a year now due to hormonal imbalance. I had intercourse with my bf on August 28 which is my fertility window (according to my period calendar), i started my pack August 17, no missed pill. is there a chance that I’ll be pregnant? Although I had my period last September 14, I’m still worried. Please help. Thanks.

    • If you have been taking BCP according to the manufacturer’s recommendations for almost a year, then you should have maximum protection. BCP does not provide 100% protection against pregnancy, but you should have the maximum protection reported by the manufacturer.

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