Anyone else's partner seem... different after the baby?

This might be a weird question but I'm noticing my wife is just... distant lately. Our son just turned 2 months old. She seems annoyed when I try to be intimate, which I get, but even just like emotionally she's checked out sometimes. She's amazing with the baby but with me it's like she's going through the motions. I know she's tired and hormones and all that, but I'm starting to feel like I don't know her anymore. Has anyone dealt with this? How do you reconnect? I miss my wife.