Children are very smart and I doubt Charli will think her nanna is her mummy. She loves you to pieces and there is no-one in the world to take your place. You will get the precious bonding time after work with dinner, bath, storytime etc. You will be there if she wakes up during the night and needs someone to cuddle. It's hard to put her in daycare but you and DP are the centre of her world and she will not forget that.

Also if she has been going to daycare 3 days a week, then she has some understanding at mummy or daddy will pick her up at the end of the day. She can't say it but she knows.

I can't offer any suggestions about getting through the sadness and guilt other than to look at the reasons you are doing this. It is in the best interests of your family!! That is all that matters.

Good luck!