Hello, I have had the worst cramps that I have ever had the past 3 days. There are so bad that I can barely walk and I feel like I cannot breath and having an anxiety attack. I am due to started my period any day, but I have not started. I have had unprotected sex, but he pulled out. However, the times he didn't I got the morning after pill. I bleed very heavily one day about a week and half ago and had a weird pain in my stomach, but it only lasted a couple of hours. Could I be pregnant?