Weight gain...help!!

Al

So my little one was born on Nov. 3 and she weighed 6.15 and now at 3 months and 3 days she weighs 11.6 I’m wondering what your littlest ones weigh? She’s a very happy and smiley baby. I exclusively Breast feed her and nurse and try to nurse her at least every 2-3 hours during the day or whenever she seems to want to nurse! But she has been sleeping 8-11 hours at night the past several nights and now I’m wondering if I should be waking her up? She weighed 10.4 at her last Dr. appointment ( she was 2 months) and so I might call her Dr. to see if a pound is a normal weight gain? Just thought I’d get thoughts from you ladies!!