Im in a happy marriage I love my husband but im exhausted. I have 3 kids all 6 and under. This is my husband's first child and while I want to enjoy this with him. Im 15wks and I just don't care for sex like so far we've had 8 times this month which I usually have to really turn myself on for. I love my husband but can I respectfully deny him sex and expect him to stay faithful in our marriage?