roller coaster emotions, need tips and advice

Courtney
Hey ladies! Preggy with second child, a girl!, and am 23 weeks and 2 days. I'm needing tips on how to manage these emotions, I had them with my first but I thought it was more situational depression (biological and I did not get along after I became pregnant, long story). But it's even with this pregnancy, I'm happily married to an amazing man but it doesn't seem to help my emotions too much.
I go from "happy and feeling sexy" to boderline crying and feeling hideous within an hour. My most common emotions are either happy or depressed to the point of feeling "checked out." No thoughts of self harm or anything, just wanting to be left alone to cry and eat.
I'm not on meds, I was after my son was born but stopped when he was about a year or so because I hated taking them. Working out helped a lot but now I'm pregnant again and it hurts to do the things I love. I want to avoid medication for baby's safety, but just don't know what to do anymore. I was hoping 2nd trimester would lighten the hormones a bit but it seems to get harder as the pregnancy goes on.
Any tips would be great. Thanks!