My period had ended one week before my boyfriend and I had sex. I lost my virginity but contrary to what I was lead to believe, there was no blood. We used a condom and I took the morning after pill a few hours later. It has been a week since this happened and I have been unusually tired. My sense of smell also seems to have heightened. Yesterday, which was roughly one week since we had intercourse, I noticed that I started spotting, but I know that this was older blood because it was a darker brown. This morning I woke up to find more of the darker brown blood and it's just like I'm having my period. For right now, anyway. I'm worried that I may be pregnant with all this unusual stuff happening. Any help is much appreciated!!