My daughter is 9, son is 7 and I'm 21weeks with baby 3. I can't wait for his arrival but I keep thinking something is going to go wrong or I won't cope. I worried at first scan that there was going to be nothing there. Then at second I was sure they were going to say there was something wrong. i don't want to put this on my partner as I know I'm just being daft and he's so excited as this is his 1st baby. I feel quite alone.