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Q: 

Is it normal to miss a period after taking plan b?

By Anonymous January 8, 2010 - 6:01am
 
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My LMP was Dec 9th and on Dec 12th (saturday)I had unprotected sex and took plan B. I took one pill that evening and I took the second pill late, i took it 15 hours later insetead of 12. In fear that the pill did not work I took another dose on Monday. I started to bleed exactly one week after taking the first pill on saturday Dec 19th, I've read that the bleeding could be "withdrawl" bleeding. Is it possible to ovulate again after having the withdrawl period?
My period is now late. I took 3 pregnancy tests this week and they all come back negative. Could it be that I will NOT get my period this month because I took 2 plan b pills in 3 days. I will also mention that I've been stressed out since having unprotected sex but I don't think i can relax until i get my period. Pleae help!!

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EmpowHER Guest
Anonymous

Me and my boyfriend had sex the day of my ovulation (24th of July) BUT we used a condom and nothing ripped or anything. But I still took the next choice pill 2 days later (26th of July) and now it's a week later and I haven't gotten my period like it said I was suppose too! Help! Could I be pregnant?!

August 3, 2012 - 10:35am
EmpowHER Guest
Anonymous

Can Plan B make a girl miss her period?, My girlfriend had taken plan b in May just incase after our first time and her periods were coming a week early til July. Now in July 4 the condom broke so she took Plan B again within 24 hours. Her period hs not come yet and is strange that because she was coming a week early and maybe that she had taken it twice May 4 and July 4 could cause her to miss her period? There have been no signs of pregnancy. We always use protection, (spermicide condoms) which havent broke and we did do it twice after taking plan b in July 4, Last was the 13th and no sperm has encountered since i pull out and away from her when blow. Its been one week late so far and she is seeing a gyno in August. I was just thinking that the Plan B is shifting her cycle and telling her that she may miss it.

July 31, 2012 - 7:16am
EmpowHER Guest
Anonymous (reply to Anonymous)

A sigh of relief when the pregnancy test are negative

August 2, 2012 - 9:08pm
Guide

Hello Anonymous,
Changes in a woman's menstrual cycle is a reported side effect of Plan B. The synthetic hormone contained in Plan B is similar to that found in many birth control pills, but at a higher dose. This can throw off the cycle. A period may start earlier or be later than normal. Menstrual flow may be lighter or heavier than normal.

Maryann

July 30, 2012 - 4:31pm
EmpowHER Guest
Anonymous

Anonymous
On July4 the condom broke and we took Plan B 7 hours after the incident. We had protected sex(spermicide condoms) after a couple of days. The last time was the 13th and the condoms didnt break nor didnt i insisde her. The strange thing is that her period has come which she was due July 25. No signs of pregnancy but just worried that plan b is throwing off her cycle. its been 5 days without her period

July 30, 2012 - 4:59am
Guide

Hello Anonymous,
There is a slight potential of getting pregnant from pre-cum (pre-ejaculation).
If your girlfriend is late in starting her period by at least one week, she should take a home pregnancy test.
Though the definition of virginity varies among individuals. one loses his or her virginity once he or she engages in sexual activity.

Maryann

July 20, 2012 - 5:04pm
EmpowHER Guest
Anonymous (reply to Maryann Gromisch RN)

Thankyou for you time I really appreciat it

July 21, 2012 - 9:11am
EmpowHER Guest
Anonymous

Hi
well I'm scared .. and I need help please..
I had unprotected with my girlfrirnd and it was her 1st time and mine aswell.. it happened total of 3 times the 1st one I had no condom but it lasted about 2-4 minutes when I realised tht I had precum I got scared so we stopped. I bought the plan b pills she took it then a day later she was bleeding she wasn't sure if tht was her period. The 2nd time tht we had sex was a week later (stupid me) and same thibg happened I saw I had precum so we stopped same thing with the 3rd time . The 4 time i used a condom.Now its been a month and a half tht we haven't had sex but she hasn't had her period..can she get pregnant from the precum? I never came in her plus the last time we were together she said tht "I popped her chermeaninguess meaning I took her virginity tht lat time. Please help me thank you for your time

July 20, 2012 - 8:03am
Guide

Hello Anonymous,

It is not possible that you are pregnant. You took Plan B within 72 hours following unprotected sex. Plan B is 95% effective in preventing pregnancy when taken within the first 24 hours. You had a normal period. The delay in the start of your period this month is probably a side effect of taking Plan B.

Maryann

July 13, 2012 - 4:23pm
Guide

Hello Anonymous,
I assume that you are currently enrolled in a nursing school program. Have you studied anatomy and physiology yet? Have you studied the endocrine system? If you have, then, you should be aware of how the menstrual cycle is regulated by hormones.

Estrogen and progestin play a vital role in the menstrual cycle. In the second half of the menstrual cycle, if an egg is not fertilized, estrogen and progestin levels drop, the endometrium breaks down and menstruation occurs.
Plan B uses a larger dose of levonorgestrel than a single birth control pill. Levonorgestrel is a synthetic progestin. Combination birth control pills contain synthetic estrogen and progestin.

By taking one dose of Plan B and just two doses of birth control pills, you upset your body's normal estrogen and progestin levels.

I suggest that you give your body a month to stabilize its normal hormone balance. Have your boyfriend use a condom when you have sex. If you are going to take birth control pills, you must take a dose each day at the same time each day. I strongly suggest that you make an appointment with your gynecologist for a complete exam.

Maryann

April 25, 2012 - 5:45pm
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