How long to wait for a message before you start to stress!

So I've been talking to this guy for a few weeks and usually is make them chase me but I'm am inlove with him and I'm pretty sure he likes me too.
He plays cricket all the time and works night shift
The other day he said he'll message me the following night because work will be stressful and it's been well over two days and I still havnt got a message
I don't wanna come across as clingy but I don't wanna get hurt again, I really like him and I thought we might end up together but I don't want to wait around if he's just going to screw me over
Am I overreacting or should I message him?
Help me!!