Sleeping like a rock

My first pregnancy I just remember waking up like 3-4 times a night peeing. This time I’ve been sleeping like a rock and when I wake I’m super stiff and in a lot of pelvic pain. I almost pee myself because I’m sleeping so solid. I don’t know if it’s just the combo of working, having a 3 year old and being pregnant. I’m just exhausted all the time and pass the F - out (90% of the time). I’m sure it will change in a week or two. This past weekend I was a little insomniac starting to prep. I’m already starting to get more anxious about life with two kids. I had dreams or nightmares of labor last night. I was like stuck in my dream.