Husband won't leave me alone.

Hi ladies. I need some advice in my life. I'm 38 weeks and a day with my first child, a boy. My husband and I had a very active and constant sex life that has dwindled with the progression of my pregnancy, but now, so far along, I have lost nearly All drive. My husband has not lost any however and is constantly pressuring me to be intimate. I feel pretty bad about telling him no so much but I just don't want to be touched, I just want to be left alone. Should I suck it up and stop denying him? Or am I not in the wrong for wanting to be left alone? Thoughts?