Help!!!!!!

We've been TTC for 3 months and this is our first month with using a fertility app and OPK.  I test positive for ovulation which means you're suppose to BD within the next 12-36 hours. Well, of course on the first month of really trying, my husband gets performance anxiety. Is this normal? I'm trying to not get upset but I feel like he's let me down. Am I the only one and any suggestions to help ease his mind?