Paternity leave ending - freaking out

I've been home for 8 weeks and it's been the hardest, weirdest, most amazing thing. I actually feel like I know my son now. In 2 weeks I go back and my wife will be the primary again. Don't get me wrong, she's got this, but I'm dreading losing the daily time with him. Plus I'm genuinely concerned about how she'll handle it solo while I'm at the office for 9 hours. Any dads here had trouble with that transition?