Husband all of a sudden doesn't want kids

So our financial situation isn't perfect but we're stable, we have two cars, a house, jobs, extra rooms, everything is in place for a bundle of joy. We tried for a year, I was diagnosed with pcos, I finally got the meds to help us along, just started them. And BOOM all of a sudden he's worried that we can't handle the financial burden of a baby right now.

What do I do?