First time single mum 30 weeks pregnant. Feeling exhausted and overwhelmed. Just had half term as I'm a teacher but my whole family descended on me and I didn't get a minute's rest. Just needed a day or two of peace and quiet and sleep before returning to work but am feeling so guilty now. AIBU to have given myself a couple of extra days off? I probably could have gone in but feeling a little emotionally fragile and definitely tired!