husband having issues TTC...

We miscarried our daughter at the beginning of December and weren't able to have sex for over a month because I bled for so long. When we finally did, sex was amazing. It was healing to be able to be close to him again in that way. However after I started testing and tracking my cycles again, he seems to be having issues staying hard during sex that is timed around ovulation. During spontaneous sex, he's fine. I think he's putting so much pressure on himself to conceive again that he's psyching himself out. Any tips? Anyone else's men go through this?