TTC but DH can't perform

So we have been trying since our TR June 2018. Had a miscarriage in Jan.. every month we temp and use opks. Last month he was out of town when I peaked.. I peaked yesterday and today... Never had an issue with sex.. both have always enjoyed it.. but for some reason.. once I hit that window.. nothing. Last night and today.. he all the sudden can't keep an erection. We have always done it every other day of my fertile window.. then 2-3 days at peak.. we did the every other day.. but as soon as I peak.. he goes cold. As I lay here bawling... Is it me.. I feel so unattractive at this moment. Can't eat, can't fathom having him even look at me... Sorry just needed to vent as I don't have someone to discuss this with. So personal.