Ok is this normal? Im 34 weeks and the last week my bump feels like it will split open,especially when i walk,bend and it moves about.Its so tight and is so uncomfortable

It is getting quite painful and sometimes when my BF puts his hand or head on my tummy it really hurts.
I have the midwife on thursday and she'll have a poke about but she isn't very gentle and im guessing it will hurt then too.
Im a bit worried if this feeling is normal? or maybe im further on than i think? as i feel so so so huge and had a couple of comments along the line of...."when is it due?" i say "6 weeks" and they say "really i thought it would be any day now!"
Any idea girls or anyone else getting this splitting pain?