Depression

Abbey • I'm 22 years old, married, one angel baby, one earthly baby, and one baby on the way.
So ever since I've entered my second trimester I've become extremely depressed. Like I hardly even get out of bed anymore. It's so bad and I don't know what to do, I was on mess for it before I was pregnant but I stopped cause I got better. But now it's back hardcore. I don't know if I can take meds for it now, or what I should do, anyone else have this problem?