opinions please!!

Ashleigh • Mommy to a beautiful babygirl my 🌈..*1/9/18👼🏻*1/23/20👼🏻👼🏻*
I just recently had an HSG done on 7/8. I had sex yesterday but today I have like cramping, I know it's way to early for the sperm to reach up there and for implantation so could it just be from having the HSG?