husband infertility? varicocele?

I am 28, my husband is 29. We've been TTC for 7 months. We're both healthy. My husband is convinced he has male infertility due to a left sided varicocele. He's never been diagnosed but I see what he means when he points it out. I ovulate & have a regular cycle. He's blaming all of our BFNs on himself and getting really down. I think we should just keep TTC as usual until we reach 12 months. He says his gut feeling is he's infertile & wants to get tested ASAP. Anyone have experience with this? Any opinions? Thank you!