@saveoursoul You've already got some pretty good feedback and things to think about.
I'd apologise to your co-parent about how you went about it and try to start again.
- you'd like to talk about communication
- you'd like to talk about child support
- you thought this might be easier in person
You and your partner can talk about what is bothering you, ideally get on the same page, and then you take it to your co-parent to discuss. Co-parent doesn't need to know or hear about your partner's opinion. It's not co-parent's responsibility to respond differently because you are having a baby.
Then you can set some boundaries, for example:
He can text or call you if it's easier for him, but only call a second time if it's urgent. Do not call more than that. You will follow up by the end of the day. Send an email if it's multiple questions or requires thought. Ask how he wants you to communicate with him. Tell him you need child support on time. Let him share his opinions on your daughter being home alone, tell him you will take his thoughts into consideration. Etc.
If you cannot come to an agreement, look at what legal options you have, maybe try mediation. Talk to your co-parent about this.
Then have some conversations with your partner.