What if you miss one birth control pill while you're on antibiotics?

Answer 1

Most antibiotics do not affect the Birth Control pill, but some do -- examples are griseofulvin, rifampin, and some HIV medications. A few of the more common antibiotics may decrease estrogen levels a bit, but not enough to cause pregnancy. But if you miss a birth control pill while on one of those antibiotics, the risk may increase.

There are no studies quantifying the chances of pregnancy if you miss a birth control pill while on antibiotics. Normally, missing one combination birth control pill doesn't require any special care. You can talk with your health care provider or pharmacist to find out if your birth control pill and antibiotic combination pose a greater risk, and whether taking emergency contraception makes sense.

If you're missing pills regularly, your risk of pregnancy is higher. Consider using a method that doesn't require you to take action daily. The IUD and contraceptive implant are highly effective and reversible methods.

Answer 2

Most gynos will tell you to take the missed pill with your normal pill the next night, and that if you had unprotected sex the day you missed the pill, that you should consider a precautionary medication like Plan B.

Answer 3

If you miss five pill, restart the pill as soon as you remember. Use a back up method of birth control, like condoms or abstinence from vaginal sex, until you've taken the pill correctly for seven days. Consider skipping the pill-free or placebo week this month. And call your health care provider to discuss safer options that don't require you to take a pill daily.
Yes.
If you have missed a week of pills during the cycle you have a possiblity of getting pregnant.
It's impossible to accurately predict the chances or probability of getting pregnant after missing a few pills. However, you are more likely to get pregnant under these circumstances than you would be staying on the recommended and normal prescription plan. There is a 2% chance of getting pregnant because you missed BC pills. You wont be fully protected against pregnancy until you've been on BC for 4 weeks. Until this time you'll need to use a backup method of protection.
FIRST, if you miss 5 pills, it reduce the effectiveness of pills BUT if you already had period, it means you should not expect pregnancy.

SECOND, actually you had sex on first days of period which is not fertile day. Discover more below in related link "Sex During Period".

Answer 4

To have them work correctly you need to take them everyday. Since it seems you have missed many days you need to use some other form of protection because you are no longer protected. If you wish to take the pill you need to take them everyday and not miss any days.

Answer 5

yes but not by the antibiotics, you would have to have had sexual intercourse to become pregnant