Nursing frequency

Do you keep track of how many times a day your baby nurses? Do you try to get in a certain amount of feedings a day?

My little guy seems to have started spacing out his feeds more, which is good, but idk. Then I worry he hasn't had enough. I know, I know...baby will make you aware when he's hungry. But I just worry. He also now usually only wakes up 1x at night to eat.

Also, he's 12 weeks which is one of the typical growth spurts, so I would expect him to be nursing more frequently. ? No changes in him...content, he still feeds the same amount of time when he does nurse, etc.