We did ‘There's A House Inside My Mummy’ and ‘what about me’. We also got ‘when i became your brother’ for when baby was born x
https://www.amazon.co.uk/Were-Having-Baby-Adapting-Sibling/dp/1509836322 We read this one every day in the weeks leading up to the birth. Was really helpful; especially the bits explaining that I would be away in hospital and he would be with grandparents
I was gifted a book from wonderbly where you make it personalized. My daughter was quite young when I was expecting but it’s still one of her favorites. https://www.wonderbly.com/uk/personalized-products/new-sibling-for-you-book Added my reference link if you want £10 pounds off :) https://wonderbly.mention-me.com/m/ol/es1qd-hanna-hultberg