Husband pleasuring himself

My husband and I have a 3 year old and a 9 month old & im a stay at home mom. At the end of the day, I am so tired so sex is usually out of the question. I’m also not on birth control yet so it’s limited when we can do it. My husband has been working from home since covid so he works in the basement every day. I’ve noticed at least a couple times a week there will be a “dirty” sock in the laundry basket downstairs & I called him out on it jokingly and we laughed it off. But this has become a consistent thing for him. Is it weird that I find it weird & that he’s pleasuring himself so often? I would never get mad at him for it because I’m not giving him sex (especially since our youngest still wakes up so much at night). I guess it’s just making me question if I should just be giving in more to meet his needs..