Coping with despising the in laws

My husband and I have been trying to conceive for a while and we recently went to the Drs to see about getting his sperm tested. We did that because he had an undescended testicle when he was a baby which his parents never did anything about (and his mum was a nurse). He had surgery when my mum (also a nurse) and I made him get it checked out.

They're terrible parents in general and I wasn't a fan but now I despise them.

I think I'm projecting because we're struggling - how do I cope with this??

He's doing a sample on Thursday but I'm trying to prepare myself - I feel awful.