I don't think I want to be pregnant now!

I left my 4 year relationship and marriage back in May. He had been cheating on me off and on for the entire 4 years and I finally had enough and left. That entire time pretty much we were trying to get pregnant and had been unsuccessful until last December. I got pregnant and had a miscarriage. It drove a bigger wedge between us and that's when I left. Anyways , he has children and I don't. So I assumed that the problem was me and my body, not his. Well I was briefly dating someone last month and we had unprotected sex. Yes I know it was irresponsible. But now I'm worried I could be pregnant...and I don't know if I want to be! Not that I don't want a child, trust me I do. But I'm not in a relationship, and this is not how I wanted to have a baby, by someone I'm not even with! I guess in a few more days I'll know when I take a test. But just had to vent because I'm going crazy with back and forth thoughts of being excited but not at the same time . Ugh.