Frustrated and mad

We been ttc for about a year for baby #3 but my husband is barely in the mood for sex, he's always tired. I tried everything I'm sick of getting rejected it's feel so humiliating. I'm so frustrated and mad how else am I suppose to get pregnant. It's enough being frustrated all the time from lack of sex and affection now over conceiving, I'm so sick of this... sorry for venting just had to let it out