Work mom depression 😭

I am 27 weeks pregnant and I have a 2.5 year old. Every day it’s getting harder and harder to go to work. For starters I’m huge already and my back hurts so sitting all day makes me uncomfortable but more importantly I want to be home with my daughter before the baby gets here. I feel like I’m spending no time with her and in December im just going to throw another baby into and I don’t want my oldest daughter to feel like she’s been replaced. Then I feel bad for my unborn daughter because I’ve been so busy with work and trying to spend time with my oldest when I’m not at work that I have gotten nothing accomplished to prepare. I have a car seat and a swing. That’s about the extent of what I’ve done and I’m in the third trimester. Every day I’m sitting at work I feel like I’m putting off more important things and neglecting my girls. I like my job and I love the people I work with I’m just struggling so hard right now. 😭😭😭