labor soon?

so I've been so exhausted the last couple of days. like next level sleepy. I sleep okay at night for 8-9 hours then I get up, eat breakfast, up for maybe 1-2 hours, then I'm falling asleep in my chair so I go take a nap for 1.5-2 hours, then I'm up again for a few hours and I'm sleepy again. it didn't used to be like this. I would get tired sure but this is a while new thing. I am currently 37+3. is excessive tiredness a possible sign labor may be coming soon? obviously i want to make it to at least 38 weeks as near to 39 as possible before I'm 100 % comfortable for her to come. I've also had very sore hips recently. OB says no dilation at all as of last week but I am measuring a couple weeks big. getting a sizing/dating scan to.orrow