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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Any Chance Of Getting Pregnant When On Antibiotics And Birth Control Pills. Any Need Of Taking Plan B?

I had sex two days ago while on antibiotics and birth control I used a condom too but it skipped down about an inch I was wondering if I could get pregnant and if I should take plan b ? Also I started antibiotics and birth control on the same day, does antibiotics actually effect birth control ?
Fri, 6 Dec 2013
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OBGYN,  's  Response
Hi,
Thanks for the query.
Sometimes antibiotics can affect the function of birth control pills by disturbing their metabolism.
But if you used the contraceptive pills as per the guidelines the possibility of pregnancy is less.
For more details : http://srsree.blogspot.com/2013/11/general-guidelines-of-using-combined . tel

As, you used condom also, if there was no ejaculation, there is less possibility for pregnancy.
So, continue to pills and wait till your expected date of withdrawal bleeding.
Possibly you will get withdrawal bleeding as expected.
If not consult gynecologist once and go for pregnancy test.
As the possibility of pregnancy is less, emergency pill may be needed.
Heavy dose of hormones can lead to menstrual irregularity.
Take care.
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Any Chance Of Getting Pregnant When On Antibiotics And Birth Control Pills. Any Need Of Taking Plan B?

Hi, Thanks for the query. Sometimes antibiotics can affect the function of birth control pills by disturbing their metabolism. But if you used the contraceptive pills as per the guidelines the possibility of pregnancy is less. For more details : http://srsree.blogspot.com/2013/11/general-guidelines-of-using-combined . tel As, you used condom also, if there was no ejaculation, there is less possibility for pregnancy. So, continue to pills and wait till your expected date of withdrawal bleeding. Possibly you will get withdrawal bleeding as expected. If not consult gynecologist once and go for pregnancy test. As the possibility of pregnancy is less, emergency pill may be needed. Heavy dose of hormones can lead to menstrual irregularity. Take care.