Is something wrong with me? (Brief summary)

Okay so ever since me and my ex ended I've been numb. Last time I cried was when my friend passed away but other than that I can't feel any real emotions towards anyone. Like I simply don't care for anything or anyone's emotions. Recently I've been with guys here and there after the break up of course but I never really felt anything for them. It was more like using them for my pleasure and people tell me I'm so cold hearted that I have no heart. I literally can't feel any emotion over anything. I mean i obviously think a guy is hot when I see a handsome guy but I never feel any emotion towards it like a fan girl way like I use to. Now I'm just like eh he's cute. A couple months ago about 2/3. I hooked up with some guy and ended up pregnant. I wanted to keep it but he wanted me to abort it and kept getting angry over the idea of me not aborting it since he didn't want me and that we were too young and said I did it on purpose. Well anyways after we stopped talking weeks later I ended up having a chemical pregnancy. I haven't told him and don't know if I should or not since we stopped speaking since the argument we last had over keeping it and losing contact. But even then I didn't cry nor feel anything. I feel like I'm a horrible person for having no sympathy. Especially after losing my unborn child to a guy that was a one night stand. I feel like I'm more understanding in every situation though. Is something wrong with me ?