is it normal

Brandi 🧜🏼‍♀️🍍🦄 • momma to my first born Carter 7/3/11 • bonus momma to 2 more boys Stephen & JJ • momma to an angel baby 3/3/16 • and momma to my rainbow baby Aria 11/29/17 •
my fiancé and I had sex last night and today I'm having cramps. I'm only 6 1/2 weeks, is that normal?