Cramps 5 weeks 6 days

I woke up with cramps today that feel very very almost identical to period cramps just not as severe. They go in my lower back and only last a few seconds then comes back again. Is this normal? Its not a sharp cramp like when you have to go to the bathroom it’s that lower achy dull period feeling.... I’m very very nervous. I don’t remember these cramps with my first!!!!!!!!! Yikes! Lol. They kinda hurt! Very dull achy