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Amoxicillin interaction with Birth Control

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Amoxicillin interaction with Birth Control

I have been on the pill for over a year. 21 days with a week of placebo.

I had sex May 24th and then started my period on June 9th and it last for the normal time frame.

On June 14th I had my tonsils taken out and was put on Amoxicillin. I took the Amoxicillin for the required 10 day period and just starting June 27th I have had brown discharge. Monday the 28th I had protected sex and he had pulled out.

Since the brown discharge occurred before sex, I wouldnt be pregnant, would I?

Considering I had my period the last cycle and I am was on Amoxicillin this cycle, is the brown discharge considered my period, even though I will not start my placebo pill until July 4th?

The doctor had shared with me that the antibiotic would cause the pill to be not as effective but she did not mention the side effects. Is the brown discharge my period, since the antibiotic had interacted with my birth control?

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replied July 2nd, 2010
Am I Pregnant Answer A13790
Welcome to the forum. I am really glad to help you out.

The possibility of pregnancy needs to be ruled out as the brown discharge can actually be due to implantation bleeding.

Antibiotics are known to produce failure of the oral contraceptives. To confirm the status of pregnancy, I would suggest you to get your serum HCG levels estimated since this is more specific than urine for pregnancy tests.

The HCG (it is a hormone) levels rise only in pregnancy and its presence will confirm the status of your pregnancy. I sincerely hope that helps. Take care.

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