My husband no longer seduces me, can it be that im pregnant?

Im 6 months pregnant and my husbands seems to be a lil less interested in me sexually, I try to seduce him and it works most of the time, but its always the same thing, and honestly im a lil bored of it, I want him to be the way it was before I was pregnant. This change makes me feel that maybe im not pretty anymore or that he no longer wants me. Will this change after the baby is born? Any answers will help Thanx