I'm 39 Weeks pregnant and swollen?

I'm 39 weeks pregnant and I've been swollen for a little less than a week. My husband and i have had sex twice in a week; It seems like after sex it only gets worse. I've read that its normal because the baby has dropped and putting pressure.. My issue it I'm only dilated one centimeter the baby has not dropped and i have a narrow pelvic bone. So is it still normal??