Sharing my Son's Father

The father of my son, just recently had a baby by someone else in September, I'm 37weeks & 6days pretty much due whenever my son is ready to come, he doesn't check on my pregnancy let alone have purchased a thing for my son, I can't help but to feel he is providing for the other child & not mine, He is working so there is no reason why i haven't received anything he claimed he bought some hats and socks but I have yet to receive that, This is really depressing because every boy needs there father & I don't think he is gonna come around like he says he will ....Should I just wait for him to come around financially or Just put him on Child Support anyway?