Feeling so depressed

I no I'm emotional but I feel like crying all the time and I get so frustrated with my kids (5 under 7) so easy then afterwards I feel like a crappy mom and lock myself in the bathroom and cry..I don't feel like I can talk to my husband, I think he will just say I'm stressed or overeating..I stressed, I work full time and my husband works from home and I'm worried about having to be out of work..my job doesn't have paid leave..so anyways I dont no if its the stress or pregnancy or if I'm dealing with depression..