Confused...

I had my IUD out on 3/18. Had a period before that from 3/2 to 3/9. So GLow told me Then got my period again on 3/20 - 3/24.... I'm sure it was triggered by the IUD removal. We've been having a lot of sex which we do typically. I'm trying to figure out when I actually may have ovulated. My boobs have been extremely sore and I've been kinda emotional. Don't know if it's because I'm ovulating or is perhaps I'm showing early signs of pregnancy.