Have you ever felt like it is time to leave?

I'm starting to feel like I am unwelcome in my own home. I feel like my husband is tired of my boys and I. Like things would be better if we just left. I'm a stay at home mom of 3. We are expecting number 4 in April. I know I'm hormonal and emotionally unstable due to being pregnant so I probably won't leave. But the way he treats me, and the way he gets aggravated with my 2 boys just makes me think he'd be happier with just him and his daughter. I love him but I know if I was teaching my daughter to respect I would tell her that the behavior is unexceptable and she needs to respect herself more than to be verbally abused. But I know children learn from actions not words. I love my stepdaughter more than life itself. She needs a mom that will love her and nurture her. That is the main reason I stay. I'm sorry for the long rant I just have no one to talk to. I'm not aloud to talk to people. Please no bashing.