I had unprotected sex with my boyfriend 4weeks ago, the next day I took the pill. The next week I was fatigue, bloated constantly, and a full stomach feeling with slight and shard cramps. This week I've been having slight shard chest pains. I was due for my period last the 12th, the beginning of this week. Is it possible that I'm pregnant? This morning, I didn't feel bloated, but my stomach is still not back to normal.