AFirst of all, kudos to all the breastfeeding mommies here; we all know firsthand its not always roses!
Please consider my experience. I was 16 when I had my first baby, who was formula fed because I gave him up for adoption. I suppose it may not count as much because of my young age but I lost the 40 lbs. I gained during pregnancy almost immediately.
Baby #2: I was 27 gained around the same. I nursed until he was around 7 mths but did not lose the remaining 20 lbs to pre-pregnancy weight until after I weaned him. And let me just say that my exercise regimen and eating habits would've put jillian michaels to shame! Didn't matter; didn't lose it all until he was weaned.
Baby#3: I was 33, gained again, around 40-45 lbs. Although I intended on breastfeeding, I ended-up stopping around 6 weeks because my daughter was latching onto my nipple, not the aereola, and I just couldn't bare the pain a second longer (note to others, seek help. I had a lot going on so I didn't but looking back, I think she was a little tongue-tied, which is an easily fixed problem by a Dr. snipping baby's frenulum...anywhoo). Again, I had a lot going on so stress could've played a part, but I was down to LESS than pre-pregnancy weight at 8 wks. Yep, 8 weeks! No working out and no specific diet.
Baby #4: 35, gained 40-50lbs. I've been breastfeeding, doing moderate exercise, and if I'm being totally honest, have not been consistently eating well. But, just as with baby #2, I'm holding on to around 15-20 lbs.( I'm 9mths out). Only this time, I'm not exercising like a fiend.
Ladies, I know what they say about losing the weight faster while breastfeeding bcz your body is burning more calories. But for me, it just hasn't been the case. I don't doubt that I'm burning more caliries bcz most days, I feel like I could eat the house. But I really think your body holds onto more when its in bfeeding mode.
Don't be discouraged! There's a time and season for everything. I know I've probably spent way more time obsessing over it than I need to; time I could've been blissfully lost in, who will be my last, baby's eyes. Enjoy this time and dont be too hard on yourself.
You will have plenty of time to obsess about your weight after your baby is weaned.