Fertility lube!

I don’t produce a noticeable amount of EWCM in my fertile window but I’ve never had issues with dryness during intercourse so wondering if we would benefit? I’ve heard you don’t typically use fertility specific lube unless you need lube in the bedroom but Would we potentially benefit adding this seeing as I don’t seem to get much EWCM and if so what’s the protocol?… do you have to insert it for a bit of time beforehand? Thanks!