Advise Please !😭 (kind of long)

So my husband and I have been together for 4 years, married for 2. We have a beautiful daughter who will be 1 years old in July. Since I've given birth I've been a stay at home mom taking care of my little girl. I dont have people that I know or trust in my area to babysit my daughter if i did start working. He recently lost his job and is trying to find a new one. Because we both arent working he constantly tells me how horrible I am and how he wants to leave me for somebody better that does have a job. He tears me down everyday and at this point im not sure if we should be together or not but im trying for the sake of my daughter. And to make matters worse im 8 weeks pregnant with our 2nd child and he has no idea yet. So my question is what do i do ?

Walk away ? Stay and hope it gets better within time ? I need advice because I dont what Im suppose to do anymore 😭