Boyfriend

I’m just posting this as I’m not sure what to think but I tried to initiate sex with my partner, I’m 8 weeks postpartum and he said not now in a bit. Which is fine but he said to me that he was going to have a wank so obviously he’s horny right?

When I tried to initiate the sex he didn’t really seem interested and was making every excuse up to not have sex. He’s usually always up to have sex and by always I mean at least 3 times a day. When he came in from work he was sat on his phone then that’s when he said he was going to have a wank. I guess I’m just posting this to stop myself from getting upset and to get my feelings out.

Should I be worried or?

Thank you x