Painful contractions at night 37 weeks

K

Anyone else having contractions that are quite painful at night? They start in my back and wrap around to the front. They're always regular and last about an hour or so. Last night I was in tears from the pain and not being able to sleep. But of course it happens at night and then I wake up and they're gone. Could I be getting close to labor if they're becoming painful? I'm also having tons of painful lightning crotch, more than ever.