30+3 weeks

Lower belly pain/ back pain the last hour.

It’s slowly feeling worse with my belly tightening. This is my second baby but never felt anything like this with my first: it’s like a throb pain but with no breaks and strong on and off. I don’t know if i should wait or call the midwife number or what’s best to do. In a panic

I never had braxton hicks with my first so is that similar ? Feeling very uncomfortable :(