I need advice

Let me start off with I love him with all my heart but I’m unhappy we’ve been dating a year we got pregnant a few months after dating anyway he’s changed so much we both have but I try to work with him and communicate we argue over almost everything like me getting a job I’ve been trying going in and checking every week calling ect I told him I wanted to go back to college he keeps telling me to wait atm I’m just getting information so if I do I have it we argue over our son it’s getting to be to much I’m getting to be so unhappy I’ve tried telling him I get really nervous to talk to him about it I feel like he’ll get annoyed and when I do all he says is I’m sorry I don’t know what to do I moved from my family to have our family I’m trying so hard and I don’t want to break up I want him I want us but idk what to do can someone please help I want to know what should I say to him please and thank you