I recommend you do this as well, I’m on maternity leave with my seven week old and my 20 month old is still attending nursery three days a week. I fully understand the guilt though if that’s what you’re feeling, because internally I feel terrible that I’m “sending him away” when he could be at home with me. He loves nursery though and is in a fantastic weekly routine, and I can tell you that on the two days both of mine are with me my poor little newborn doesn’t get a look in because my older child commands the majority of my time. So the days he’s at nursery it’s pure one on one time with my newborn which is lovely 🥰
edited to add I’ve just read through all the previous comments and would like to second every single one!