What age did you leave your baby overnight?

As an exclusive pumper, what age did you feel comfortable traveling away from your baby overnight? Or did you wait until after you were done breastfeeding entirely?

A lot of my friends traveled when their babies were 6 months, and mine is almost 7 months and it seems unimaginable for me still to be away from him overnight. I have to do one night away for a work trip next month (I was supposed to do 3 nights but I got it reduced to 1). I feel there is more pressure to separate from your baby overnight when you pump than when you nurse.

My baby refuses to go to bed unless I put him to bed (my husband and grandparents have all failed so many times lol) and he also drinks way more bottled milk from me vs anyone else. Has anyone else experienced this? Any advice is appreciated!