Help, possibly 3 mos pregnant?

So about two & a half months ago i had sex around ovulation time & thought for sure i was preg. My period was a week late & very watery. Symptoms were nausea , sore breasts, extreme hunger , headaches , cramping. I just thought aunt flo came for a visit. Last month i had my period a few days early & it was veryyyy watery. My breasts are still very sore & my period is due again in about three weeks. Now im expiriencing fatigue, dizzy spells, sore & larger breasts, lower back discomfort, extreme hunger & food aversions & alarmingly frequent urination, whats up? Does this sound like a hormonal imbalance or pregnancy? No rude comments, please.