Welcome and congratulations on your new little one! Did you have a boy or a girl?
I have a 5 month old that I'm breastfeeding (I also have a 2 year old, but I'm not nursing him
). I have great success calorie counting. I was on Weight Watchers for the first few months but their new plan just didn't cut it for me so I switched to calorie counting.
Definitely make your top priority maintaining your milk supply, especially this early in. That said, I started "dieting" (for lack of a better word) when my youngest was 4 weeks old. It can be done, you just have to be hyper-aware of what your calorie level is at and your activity level as well. I'm assuming since you had a c-section that you aren't cleared for exercise yet? Make sure you take it really easy at first (as I'm sure you know), you certainly don't want to cause any issues with your incision.
Again, welcome to the nursing and pregnancy forum, I'm glad to see you here! There's a weekly weigh in for breastfeeding moms if you'd like to join us on there.
This board isn't the most active among the 3FC lineup, but it's a really great group of women.