Concerned

I don’t have a history of depression or ppd. I am currently 35 wks pregnant with my third and I’m concerned I’m sinking into depression and might possibly suffer from ppd. I’m feeling overwhelmed and exhausted. My almost two year old has decided to quit sleeping thru the night for about three months now and I’ve tried everything under the sun with little help. My 7yr old just broke two fingers requiring surgery to break and reset them last week and will be off from school for the next few weeks. My step daughter (12), is going thru some emotional/hormonal changes and her level of disrespect towards everyone (including teachers) is becoming an issue. To top it off my husband behaves much like a pregnant woman with his mood swings and his lovely lack of support and assistance with the kids (besides yelling). For instance, our 7yr old had a follow up appt Friday for her surgery and I had an OB appt. he had the day off to help me with our 2 yr old but drank too much the evening before so therefore didn’t feel well enough to get out of bed, especially seeing as though he didn’t make it to bed before 2am anyways... so I took both ladies into town to our appts both of which were very difficult. Not easy speaking to doctors with kids being unruly and bored out of their minds. This isn’t even the whole story might I add as it’s just seriously so much story to write. I am withering away into the shadows. I’m seriously only here to help everyone but myself. I’m not comfortable speaking up at my doctors due to personally witnessing this hospital’s lack of actual care for ppd and mostly just treating a new mom like a criminal. She was seeking help and the hospital sent her to a locked psychiatric facility against her will, imprisoning her for days. I feel completely alone