When should we do sperm analysis?

Jenn • Due with #2!! 12-2-18
We have only been TTC for 2 months now. My SO has made multiple comments that he thinks he should have his sperm checked. He doesn't have health insurance at the moment and I'm not sure if health insurance even covers that so we would have to pay out of pocket. But is it even necessary at this point? I know it can take up to a year for healthy couples to get pregnant (not that I want it to take that long). He says he'd rather find out early so we can avoid the problem later.