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the pill, keflex, and possible pregnancy
I have been on birth control pills for the last four years. I have few if any PMS symptoms and these are usually limited to irritability and slight bloating and maybe a little cramping one to two days before my period. This month, however, I began having semi-strong (at least for me) cramps about 11 days before my period is supposed to start. I am now on day 4 of these cramps which are also accompanied by a small about of breast tenderness and constant fatigue and irritability and well as *possible* nausea-- I say possible because perhaps I am just making myself ill by thinking about my symptoms. Essentially I just feel crampy, bloated, exhausted, and very unlike myself.

Even with all these symptoms, I wouldn't be overly concerned about a pregnancy but I had an oral surgery recently and was on 1000 mg of keflex for a week before and during the time when I may have ovulated (and had unprotected sex several times). To be honest, my husband and I would be rather excited about a *surprise*. I just really hate not knowing whether there is even a chance I may be pregnant, since I am on the pill. Thoughts would be appreciated!
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The pill has a small failure rate of about 0.5-2% so its possible to get pregnant on it.  However, antibiotics can make the pill completely ineffective which complicates matters further.

A home pregnancy test will be reasonably accurate about 2 weeks after possible conception.  Im not completely sure of your dates but you might consider taking a test now and then retesting again in a week if its negative and you still think pregnancy might be a possibility.  If you are pregnant, it is very important that you stop taking the birth control pill.
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Thanks so much for your reply! I took a test this morning and it was negative. However, I'm not sure when I might have ovulated or conceived so it might be too early. I'll take another right before I'm due to get my period.

If I am not pregnant, I would love to know the cause for all my symptoms... It felt/feels like PMS on steroids... which has never happened to me before either on or off the pill!
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