We've been ttc since Oct last year, with a MC in Jan and since then we've been dtd regularly My oh knew this week was probably FW and I've found out Since sat he's 'pleased himself' at least 3 times. Would you be annoyed?
Unless there’s make factor infertility, wanking makes no difference, the balls make loads of sperms, and they don’t run out. Though if you’re really worried you could ask him to jizz in a cup or condom and use a syringe to squirt it up you so it doesn’t go to waste. Sorry it’s a bit crude, but my middle child was probably conceived this way!
I read that he'd had three wanks since October! thought you were a bit harsh! I do think "at least" three times since Saturday is much if you are ttc though. You're meant to be having sex every other day for maximum count IIRC? So if he's wanking on those other days that's a bit crap. He can do as he likes but it does show a certain lack of commitment to the cause. Can he not contain himself a bit?
If you have only been trying since October and had one PG I would advice not getting too stressed about conception generally though unless you have other fertility issues? Ovulation tracking etc is generally only necessary if you are struggling and can cause unnecessary anxiety.