Continuous Cramping

Lacey β€’ Married πŸ’ to an amazing manπŸ§”πŸ», mama to a handsome little boy πŸ‘¦πŸ» born 6/9/17 and a beautiful baby girl πŸ‘§πŸ» born 3/15/19 Pregnant with baby #3 due December ❀️
My fertile week was last week, I had unprotected sex with my SO the day after my most fertile day and now for the past 3 days I've had cramping in my lower abdomen on each side near my ovaries, not painful cramping just uncomfortable cramping, has anyone felt this before? Could I be pregnant and when is the earliest I should test? AF is due in 9 days.