12 answers

Pregnancy & Antibiotics & Birth Control Question--- Please Advise.....

Hi Mamas,

I know that antibiotics will lower the effectiveness of birth control pills, but do you know by how much???? I just realized that I have been on antibiotics for the last 2 weeks for an infection that I got after my surgery. But we didn't use back up methods of birth control-- i am on the pill. I have been really feeling sick in the mornings/afternoons and am wondering what the likelihood is that my birth control failed because of the antibiotics. Does anyone know??? I haven't had a period for 2 months--but that is due to the type of my bc pills--- 4 periods a year. Please help ladies!

Please note--- I love babies and would be fine if I am pregnant, but just want to know if anyone knows the probability that this happened because of the antibiotics......

Thank you!

1 mom found this helpful

What can I do next?

Featured Answers

Take a pregnancy test. It can definitely happen and being on birth control after you are pregnant can be detrimental to the fetus. Best wishes either way.

2 moms found this helpful

More Answers

B/C isn't 100% to begin with, so the effectiveness is lowered even more. Take a test, give yourself a couple weeks, and take the test again. Use a back up method for the time being just in case. My 16 year old nephew is proof of this as is our friend's 12 year old son.

3 moms found this helpful

Don't know the probablility but I know they always warn me if I am on an antibotic. I suggest you ask a pharmasicts for a more concrete estimate.

Can you take a pregnancy test so you can know before you keep taking your bc pills?

2 moms found this helpful

Take a pregnancy test. It can definitely happen and being on birth control after you are pregnant can be detrimental to the fetus. Best wishes either way.

2 moms found this helpful

I would ask the pharmacist. Some antibiotics are lower on the "affect bc" pole than others. But I had a pharmacist tell me that you should always use back protection as a just in case.

2 moms found this helpful

My best friend had gotten sick on her honeymoon. She was on the pill and was given antibiotics. She got pregnant as a result. I don't know the "percentage" but I DO know that you can get pregnant while on the pill and taking antibiotics. Your doctor should have told you this. I would take a pregnancy test if you think you might be.

2 moms found this helpful

I don't know probabilities but I do know that two of my three babies were BC babies and the first one was due to antibiotics rendering my pill ineffective (or we were just really lucky to be that 1 %!).

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It is possible! Take a test:)

2 moms found this helpful

One of our good friends ended up pregnant at 18 because of antibiotics...she was taking The Pill, got a sinus infection, had to take antibiotics, and didn't realize what they could do...and boom, that was it.

When I was on The Pill, and had to take antibiotics, we always used condoms for back-up.

I would just take a home pregnancy test, or go see your doctor and get tested, and find out for sure, before you keep taking more pills.

2 moms found this helpful

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