OB appointment nightmare

So I had my OB appointment to check up the twins and me. Because I’m high risk I have to get an ultrasound every visit so everything was going good so I thought. After my ultrasound the nurse came to talk with me and told me I would be getting admitted into the hospital. I thought she was joking and started laughing because this was my first visit my blood pressure was good and I felt okay other than back pain. She told me I had probably been having contractions and I’m only 20 weeks and 4 days because Baby A was 2cm away from cervix which isn’t good at 20 weeks. I went to the hospital and my doctor came to explain to me what was happening and that I would possibly be staying in hospital for 2 months and be bed rest until the babies come. One day/night and I’m already home sick 😢 but if the babies come this soon he told me they won’t survive because of their lungs not being developed. I’m praying something changes and soon 🙏🏽💙💙