Living with indoor cats while TTC

Riki • TTC baby #1!
My husband and I are TTC baby #1. We have 3 cats that stay strictly indoors. I know that there are increased health risks with cats present, and I want to move them outdoors in the spring because, don't get me wrong, I love my fur babies, but my human baby will always come first. Any suggestions or recommendations on the subject of risks or moving them outside? *not currently pregnant*