21 year old female with no interest in sex?

I’ve been in a relationship with the same guy since I was 17 years old. We’re now engaged and we’ve been living together since January.

I was a virgin when we met and he wasn’t. We waited six months before we had sex. For the first few months, maybe even a year, we had sex often (5 times a week or so, I would guess).

For the past couple of years, we’ve been having sex less and less. It’s not him that doesn’t want to, it’s me. I simply have no interest in it. I love him and love being around him, so it’s not a problem with him I don’t think.

I can tell he gets aggravated when I don’t want to have sex. We’ll do it once a week, if that. Today he asked me why it was “scheduled” for Saturdays. I go to work all day and school and night and Saturday is when I can take a little longer in the shower to shave my legs and all that. I won’t have sex if I’m prickly. It makes me self conscious.

And even when we do have sex, I always want to be on bottom. We never spice it up anymore because we wait so long in between that it hurts when we do it. That isn’t what makes me not want to have sex, because it doesn’t last long and I know if we had sex more often it wouldn’t hurt at all.

I just don’t get anything out of it. Foreplay is fine and we’ll kiss and mess around, but I don’t let him perform oral sex on me because it makes me really self conscious when he’s down there. I don’t even like him to use his hand there.

I’m not a prude by any means. I don’t have any issues with the idea of sex…I just don’t get anything out of it because the interest is gone. It’s causing tension between me and my fiance and I feel like it’s all my fault. If I don’t feel like having sex, I’ll perform oral sex on him, but we don’t do that very often either because of my busy schedule.

I don’t have a medical problem, as in I don’t have a problem getting turned on or orgasming…at least not alone. And I’m currently dieting and have been trying to lose weight for awhile. I don’t feel confident in my body and haven’t for awhile. He likes the way I look, but that doesn’t help. I don’t feel good about myself when I’m naked.

I don’t get it. What’s wrong with me?