How will i know that my husband is infertile?

Get a Semen Analysis: If you're trying to conceive without success, your husband needs a semen analysis; we find sperm problems 40-50% of the time, ranging from mild to severe problems. A fertility clinic or urologist is best; we look at both sperm numbers and quality. About half the time the sperm issue is the only problem, and the other half have male and female factors together, like blocked tubes or low egg supply.