Does your SO masturbate alot ?

So I try to have sex lined up with my ovulation days but sometimes I'm not in the mood or sleepy of forget . My SO masturbates just about every day we have been trying to conceive for a while we just had a miscarriage a few weeks ago. But he doesn't understand how it's lowering his sperm count and mobility, at this point I'm over trying to have a baby. It's really heart breaking and making me sad. But I can't take it anymore I can't wait till the SA so he can hear from the doctor what it's doing to him.