Cramping

Soo I just found out I’m pregnant. According to the app I’m 5 weeks. Well around the same time last year I found out I was pregnant but had a miscarriage a few days later after finding out. Soo you guys can only imagine I am scare as hell to lose this baby. But for the past couple of days I’ve been cramping. I just wanna know if this is normal? Should I be worried? Has anyone experienced this at 5 weeks or are my feelings of what happened last year got me over thinking stuff. And worrying when I shouldn’t.