Harder belly

I woke up this morning with a much harder belly than I had last night. I am morbidly obese, so there's always been some squish, but I am 38 weeks tomorrow and my belly is definitely noticeably harder than yesterday. I also think she's lower. My SO doesn't get home until Friday, wish me luck that she doesn't make her appearance until then! I'm getting nervous. I was slightly dilated and 40% effaced at my last appointment. No contractions, a little cramping here and there but nothing at regular intervals. Keeping my fingers and legs crossed!