Pressure and Braxton hicks and urge to poop!

I am 37 weeks and ive been having lots of pressure it feels like its from middle of stomach to vaginal area when i sit down i get contractions but there like 2 or 3 in hour and like 2 hours apart when i stand up and walk feel like i have to poop! Anyone else feeling this? Is labor near? I have 2 boys but never felt this 1st and 2nd i had to get induced and then before felt contractions babys heart rate went down so had 2 emergency c-sections.. this is all new to me!!