My periods are semi-irregular still (21), but I can usually predict within a week when they will start. I've had light vaginal bleeding for about a week and a half now. At first my urine just had a pinkish tint, but now I'm passing smaller clots. There's no pain associated with it, but I can say that when my boyfriend was up last week and we were messing around it didn't quite feel normal. It's not heavy enough to be my period and I wasn't expecting any sign of blood for almost 2 weeks from when it started. I'm out of town right now and plan to go in when I return in two weeks, but was hoping to get some idea of what this may be.

Thanks.