Dads, take photos. Take videos. Even the boring Tuesday stuff. You think you'll remember how tiny they were. You won't. Sleep deprivation erases a lot.
Dads, she's going to complain about things you can't fix. Your instinct is to solve it. Resist. Sometimes "that sounds miserable, I'm sorry" is the only right answer.
Dads, take your baby out solo. Grocery store, a walk, anywhere. Builds your confidence fast and gives your partner a real break. You're not babysitting. You're parenting.
Dads trying to conceive: the average healthy couple takes 6 to 12 months. Only about 30% get pregnant in month one. If you're a few months in and stressing, you're right on schedule.
Dads, if you bought the car seat but it's still in the box, that doesn't count. Install it. Watch the video, read the manual, get it inspected. They won't let you leave the hospital without one.