abdominal pain at 38wk

38 weeks today. Yesterday I started having lower abdominal pain. Almost constipation type pain and very well could be. Went to labor and delivery yesterday bc I was terribly nauseated (I'm a lucky mommy who's had morning sickness the whole pregnancy but this was way different). Said my cervix wasn't closed but not dilated, no contractions and they ran a bad of fluids which helped tremendously. Well within the hr I felt the fever. Low grade and Tylenol is helping but the nausea is creeping back in and I feel constipated. Anyway. Hubs said he thinks baby girl has dropped and that's what's causing the pain. Anyone else experience this? No contractions (ftm here but no belly tightening) but when she moves (so low now) it makes me jump