Insight?

This may a dumb question ... but it's my first time experiencing this ...

When you conceived... like not implantation, but the stage when the sperm actually meets egg and fertilizes the egg.... did you feel it?

Did you cramp?

Backstory: I have never in 15, almost 16 years, had PMS symptoms aside from mood swings. No cramping. Nothing. No ovulation cramping either.

Well this month I actively tried to concieve (except I only tracked my ovulation via the apps estimate)... 3 days before my supposed ovulation period, and twice during. One of those times being on the actual supposed ovulation date.

And now 4DPO, I have uterine cramping. I just had my period june 9th to 11th and its not expected again for another 11 days. So its a bit odd to me.

Any insight?