TTC question

In Janurary we started using preseed to get pregnant but this is the first month I'm actually tracking my ovulation. I generally ovulated within the time frame that this app tells me that I will. My question is, if I've already conceived will I still ovulate this month? I cramp pretty bad when I ovulate and I've been taking ovulating tests every other day this week and non of them have been positive but I've only had a very mild cramp once yesterday.