Low self-esteem

I had my baby via csection last Tuesday and I've been feeling super low these last couple of days. My husband didn't work last week only one day so we didn't have money at all. This week he said he world work extra hours which for some reason made me feel shitty. I feel so insecure and keep thinking he's not working and he's with someone else since I can't really do anything. My self esteem went from a 9 too 0 and I can't help but feel like I'm not enough for him right now he keeps reassuring me hes not going to do anything with anyone and that hes working late for our family but I can't stop thinking bad😟