32 Weeks pregnant, and feeling weird tonight....?

Like stated above, im 32 weeks pregnant, and the last couple of days ive been feeling very odd. Im feeling very achy in my stomach region and my lower back. it doesnt feel like BH contractions, or any actual contractions, im just worried that maybe my body is trying to tell me something. Im terrified to go into premature labor. If anyone else has been been through this or knows something about this that can help it would be greatly appreciated!!! Thanks!