‼️Advice please‼️

I’ve been having period cramps along with tightenings all day that have turned into contractions. They are coming every 5ish minutes lasting about a minute long and very painful BUT that’s only when i sit up/ walk or bounce on the ball. When I lay down I don’t get any just mild cramping. This is my second pregnancy and this is different from my first. Do I try and get some sleep and see if they come in the night I’m stuck on what to do. I don’t want to go to hospital if they are only regular when I’m active. When I had my son they came no matter what I was doing so I’m confused on what to do.