Ovulation? 😩

Chels 🌸💜 • TTC baby #1 👶🏻 month 10, cycle 5- 04/18

I'm on the 4th day of what's supposed to be my fertile window. I've been taking OPK's the last few days and all negative. Today I had really bad bloating with cramping and pain in my lower right pelvic area. Also had hot flashes. What does this mean? Did I ovulate? There's also been no sign of my CM