Is diarrhea a sign of pregnancy?!?

If I woke up this morning with diarrhea, and I'm in the stage that my period should be coming any day.. is it any sign of pregnancy?!? I had strep earlier this month, and I know that antibiotics can lessen the affect of birth control.. so I'm just wondering if possibly my birth control failed, and I could... show more If I woke up this morning with diarrhea, and I'm in the stage that my period should be coming any day.. is it any sign of pregnancy?!? I had strep earlier this month, and I know that antibiotics can lessen the affect of birth control.. so I'm just wondering if possibly my birth control failed, and I could be pregnant. I'm also having cramping, which could mean my period is still coming any day..
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