Need Help please.

Ladies is it ok for your spouse to cum in you twice or should he only cum in you once every other day ? We are ttc and we have sex quite a lot and he always cums in me I never get infections and his sperm isn’t low but I’m worried I am going to make it low if he keeps cumming a lot .. is it bad ? And what are some tips you ladies can give me for ttc and how much we should have sex I’m on my first day of ovulation. So how much should we have sex and should he not always cum inside me ?