Confused

ok so my boyfriend is usually an affectionate guy in the sense that when we're sitting together he'll always have his hands on my legs, holding my hand etc, but then every now and again especially this past week or so he'll barely touch me at all, he held my hand for like 2 seconds and he randomly touches me for a second, but he's not been as touchy feely as usual. I've just started dating him a few months ago so i'm still getting used to him, and i'm just wondering if I should be paying more attention to this?? He's had a lot of work to do so I haven't been with him alone at all this week, maybe the stress of the work is busying him idk. I'm being sensitive but it's just who I am lol.