Nunu swelling after sex

I’m 37+5 and I’m 2 cm dilated. My midwife told me to have a bunch of sex to get things moving along so I don’t have to be induced. However, I’m scared to have sex because my nunu is already swollen and the last time (almost 2 weeks ago) we had sex I literally couldn’t walk or sit. I was crying and all. I have a high pain tolerance (I had my first child without any pain meds and didn’t cry once) so that was unusual for me. The swelling and pain went away after an hour but it scared me enough to not want to do it again. HELP! What can I do?!