Is it normal to have sporadic cramps 4 weeks in?

Kim • Married in august, pregnant in September ❤️ First time mommy and can't wait! Dental hygienist baking a little GIRL! 🤰🏼

I got my BFP on Sunday. The Dr tells me I am about 4 weeks or so pregnant. First day of last period was sept 9. Ive been getting random cramps every now and then. Nothing severe but wondering if its normal? It doesn't last too long either. Just a cramp and goes away. Please help ladies! Thanks.