What do labor contractions feel like?

Sa

I’m a FTM due April 9th so I am 36w 4d. At my weekly appointments my doctors keep asking me if I’ve had any contractions? And I say I don’t think so? But I have no clue what actual contractions feel like, I only know what BH feel like.

I’ve been feeling a really intense pinching, cramping feeling on the bottom half of my uterus, it basically makes me feel like I have to Pee in an extreme way. But it is different feeling than Braxton Hicks. Are those labor contractions? Or just my babies head bumping my cervix and bladder?

I basically just have no clue what actual contractions feel like. Can anyone tell my what labor contractions feel like?

Thanks in advance.