I think I might be pregnant but not to sure...I've been having weird things goin on with my body I'm 20 but I didn't start my period till I was 16 but every single one of my periods last 5-7 days an last month in February it was only 4 days an previous to that I had unprotected sex with my bf...my symptoms are bloating, fatigue, mild cramping in the lower abdomen, hip pain, sore legs, weird cravings,nausea not vomiting just nausea,frequent urination,headaches that come an go, a rumbling in my lower abdomen, slight dizziness...I took a hpt test an it was negative I used first response I'm going to try again in a few weeks but I thought maybe it could be something else any ideas please helpp alll info will be greatly appreciated!!