Off and on pelvic pressure?

TJ
So for the last few days I've been noticing that whenever I sit for an extended period of time I'll have pressure in my lower stomach and pelvis when I stand up again. It hurts slightly but mostly just makes me waddle and want to hold my belly up. I'm 37 weeks and 6 days and I don't think my baby has engaged yet so I'm kind of wondering if when I'm feeling this it's her being lower than normal/trying to drop. It usually goes away after I walk around a little bit or if I'm reclining/laying down. Has anyone experienced this and talked to their doctor or midwife about it?