I'm on the pill but my husband and I have unprotected sex a few times a week and he often finishes inside of me. I've had all of the signs of pregnancy for a few weeks now (fatigue, nausea, sore breasts, frequent urination, etc) except for a missed period. I had my period last week. Is it possible that I still might be pregnant? I took a test a couple days after my period but it was negative. If I'm not pregnant then what could be making me feel so crummy?