Ovulation and TTC

I don't think I have o-cramps anymore. My breasts are sore though. And random lower abdomen pain. Not enough to really hurt. But minimal. It says 33% chance for pregnancy on Friday. But no cramps? I'm so confused by all this. When should I have sex? We're doing it every other day. So I'll have sex tomorrow and Friday. And Saturday. And we did it on Monday.