C.S.
Congrats! I've always had cramps early on in all 3 of my pregnancies. And, just like you, it was the worst at night. this was because that's when I was the most bloated. As long as there is no bleeding and they aren't that bad (tylenol should do the trick) you should be fine. But if that's not working, just call the doctor and ask them. That's what they're there for and they get calls all the time about things like this. Drink a lot of water to stay hydrated - that should help too.