Hello, my stomach often cramps, about 4-6 times an hour, it pulls slig…

Hello, my stomach often cramps, about 4-6 times an hour, it pulls slightly in my lower back, barely noticeable, I know that if it cramps it's bad (tension), I'm afraid for the baby, please advise what to do? The maternity hospital said to go only when giving birth, nobody will be able to help me, I asked my doctor yesterday, but yesterday it wasn't like this.