Help, my husband dosent understand fertility

Kaylynn

My husband wants a baby in there worst way but has no clue how ovulation and timing play a role into getting pregnant. he thinks any time we have sex it should be a baby maker. The other day he told me k"people have one night stands and get pregnant all the time why can't we get pregnant, we are married." I want to explain it all to him but don't know how to start, anyone have reading materials or advice on how to go about this.