Has anyone experienced this?

Okay so on Monday I should have ovulated, I didn’t test just because I didn’t think about it, it was a busy day. Tuesday I tested and it was negative, but looked pretty close to positive.. tested Wednesday and it was very negative. So I’m assuming I ovulated Sunday or Monday. I hadn’t had any EWCM that came out when I wiped, that I noticed. BUT, on Tuesday I had a little bit that was mixed in with creamy CM. After that nothing.. until today, 4 DPO, and I had creamy with a little of EWCM mixed in? I know it’s too early to know anything, especially since implantation hasn’t even occurred yet, but has anyone experienced this also?

Side note: I’ve been experiencing pretty bad cramps, and I don’t normally cramp, not even during AF. But it’s like all the way across my lower abdomen, like my belly button area. It’s a pretty sharp pain but doesnt last long, it comes and goes. My lower back is also hurting pretty bad. I wasn’t sure if it’s because I’m sleeping weird or not.