Good signs? Or is it normal? (This would be my first pregnancy)

Since I’ve been off birth control my body switched to a 31 day cycle. I’ve been cramping and getting kind of a twingy feeling on and off since CD 15. I am currently on CD 17. On CD 15 I had a little discharge that was kind of creamy and white I’m not sure if that meant I was ovulating or not, but me and my boyfriend have been BD all week so I’m hoping that’s a good sign lol. What do you guys think? Did I ovulate a day earlier than I was supposed too? I was supposed to ovulate yesterday, which would be CD 16. And I’m still cramping a little in the mornings. Any help? Any advice or insights on if those are good signs? Is it too early to be implantation cramping? Talk to me!