Feeling lost

I have no one to vent to at least no one who won't judge me.... I'm 22 weeks pregnant I try my everything to stay calm and not stress so I won't harm my baby...but lately I just feel so worthless so unuseful to my husband he says that I don't care about him that I only care about myself... Which is not true... I do everything I can to make sure he has clean clothes warm food and everything. I just literally feel like my heart is so heavy and I want to just scream or cry or break something but I can't because I don't want to harm my baby.... I've never felt so alone.