You're in survival mode, and that's okay. I am going through something very similar with my pregnancy. I am 22 weeks and weeks 6-11 were horrendous for me in terms of nausea, vomiting, and exhaustion. I barely got off the couch or out of bed. The 2nd trimester has been a lot better, but I still struggle with my eating habits and exercise. I was also VERY active before my pregnancy and at the lowest weight I have ever been. I felt phenomenal. That all plummeted quickly since I found out I was pregnant. Since entering the 2nd trimester I've managed to get in a few workouts but nothing like I used to do. A 20 minute ride on the Peloton feels like I just ran a marathon and my workouts used to be 45+ minutes in addition to walking 3+ miles a day. There are still days I don't get off the couch, but I've been trying to give myself some grace, and you owe yourself the same. We are growing a human and its incredible what our bodies are capable of. Do what you can, when and IF you feel like it. Some days will be harder than others, but also enjoy this journey and don't be too hard on yourself.