Husband masturbating between sessions 😫 Is there still hope?

We’ve decided to have sex every other day during the fertile window because when we were trying everyday, he was having difficulty keeping up. However, I found out this month that apparently my husband has been masturbating on the inbetween days because he thought he was clearing out “old” sperm!! Now I just feel like this month has been wasted and there’s no hope… I know he thought he was doing the right thing, but I feel so down about it. Has anyone gotten a BFP in a similar circumstance before?