Constipated at 37w3d??

(Tmi topic) I constantly feel I need to poo, I have those pains you get when you really gotta go but it just won't come out, as hard as I try and push for the past two days now. I know burnish there and it's so uncomfortable and painful for me to constantly have that pooping cramping pain but it won't come out. I told my doctor and she didn't seem concerned, she never really seems concerned when I'm in pain or worried about something. Idk what to do :/