Thank you for all your comments!
I wanted to introduce formula as I wasn't sure my baby was getting enough. He wakes up more often during the night and I had hoped that formula was more filling than my milk.
When I give him formula, I do pump instead (gave it to him a few times, but not regularly.
So for the two night wakings at about 11-12pm and around 3-4am, would you bf him? Or use a method to put him back to sleep without a feed?
When he wakes up at night, he eats a lot and the problem is that his diapers don't hold the incredible amount of pee!!! For the last week, his bed has been wet every morning, like his pjs are soaking wet. Any idea? And actually, he seems ready for solids, but I wanted to wait until he's 6MO...
Thank you again!!