What would you do?

This morning, I asked my boyfriend if we could shower together tonight and have some special time in bed. He laughed a little and said “no not tonight” and I asked why and he said he isn’t feeling up to it. I got a little upset because how will he know how he’s feeling in 6 hours? I also hinted that we shower first cause he told me he loves having sex right out of the shower. Is it normal for guys to act like that? Sometimes I feel like most guys would love their gf to plan sex and he just acted like it wasn’t a good idea for some reason..