Hello girls ? It's week 34, I feel like my belly has dropped for two …

Hello girls ? It's week 34, I feel like my belly has dropped for two weeks now, it's easier to breathe and it seems like my belly is smaller in size, is this normal at our due date? ? I wanted to ask you on what week did your belly drop? This is my first pregnancy, I'm very worried about premature birth because I walk a lot, even up the stairs ((