Gabbi tends to let me know when she needs changing, but more often than not, I change her every 3 hours but I do tend to check her before then.
I have noticed something recently though. I get her up. I change her, she feeds, then about 1/2 - 1 hour after changing her, she has done her first poop of the day! Regular as clock work for the last 2 weeks!
One time, she was in the best mood ever, we'd been out all afternoon, she had been sat in car seat and pram. Happy as larry.
(Bulgaria do not have changing rooms/tables/facilities for babies ANYWHERE. I have to change her in the car, pram, etc.)
But this one day, she was happy, not on solids so no routine to when she needed changing. Normally she would tell me, so she went about 4 - 5 hours! Well, I got home and oh my lordy lord, a huge nappy of both!!!!! I was gutted, I couldn't believe it, I felt awful, I knew her nappy was big but I thought I'd change her at home as we were only 10 mins away and she could have nappy off time on the floor. I took it off and my jaw dropped on the floor!! She just laughed!!!!!!!!!!! Other times, she can have the tinyest little poop and she will scream until you change her!