Losing my confidence

My husband and I have been married for a year and a half. We've been together 8 years total and are high school sweethearts. I'm 25 weeks and I'm obviously showing and I LOVE my baby girl and every thing about being pregnant. However, I'm starting to lose my confidence because I'm getting bigger and I feel ugly during sex and not sexy at all because my belly is big and all over the place. And it's so hard to even be sexual because all I can think about is my little baby in there. Anyone else dealing with this or have any advice?