I'm 35 weeks prego with Polyhydramnios?

came to know about this condition when I was 33 weeks.according to the doctor baby is not swallowing the amniotic fluid around him resulting Polyhydramnios .and because my uterus size now much bigger than full term pregnant .according to the CTG I'm having frequent contractions almost after every 3 mins but these contractions r not painfull at all.Cervix is not dilated yet.don't know what to do it's my first , pregnancy , any one had the same issue ? when did u go to the labour, I am 35 weeks now , would it be safe to go to the labour?