Soon my lmp was feb 24 but lasted until March 13. However I was fertile after that & me & my boyfriend had unprotected sex. My nipples became very sore on the March 20th I also had a pain in the lower left side of my stomach. After that I also began having other symptoms like bloating, my boobs began peeling, & were very tender. I cramped, & was nauseous for the next week. Then my period was four days late. I cramped & then it finally came on the 30th of this month. Today I woke up with back pain, heartburn, sore nipples, & light cramping & bleeding heavily. I started having frequent urination early this morning too. Could I still be pregnant?