Seem like i will never get pregnant i give up!

Every month I'm trying and trying. And its more stressful the reason I'm not than having a baby! It makes me feel selfish and have no faith! I thought you receive what you pray for? Well my husband and I are like water. Thin. And we need a baby in our life after 12 years of marriage I beg! Everybody is having kids around us. I'm so sad to tell him I came on.