If you are no longer with your child's father how often should he call to check on the baby?

I'ts been nearly two weeks and he hasn't called to check on in our 8 month old!! I think that's wrong. What do you guys think? By the way he is several states away. The last time we spoke we argued and I think that's why he is not calling but I feel like he can still call to check on his daughter
Also he was supposed to send me $300 to help with daycare but hasn't sent anything and won't answer when I call! I'm tempted to go file for child support but it will be an interstate case! He would be livid as this is his3rd baby and I'm his 3rd baby mother and he hasn't been on child support! He normally helps but since this fight he just stopped calling and answering my calls! Should I just give him space or just go file?