Toddler guilt!

I’m 8+2 with baby 2, my daughter is 3. I feel horrendous this pregnancy, the nausea and low energy is unreal! I’m a teacher on half term and I feel so bad, my daughter has had so much screen time because I physically cannot entertain her. I feel awful! She’s never really been allowed tv and doesn’t have a tablet or anything so she thinks it’s great but I feel guilty I can’t play or take her out. Also dreading going back to work? How will I function?! Please tell me I’m not a horrible mother 😭