Baby maintaining but not gaining weight

Kr

My daughter is 3 weeks old. I had her via C section due to her being breech, at 7 lbs 9 Oz.

She’s somewhere around there based on me weighing myself and then weighing myself with her. She looks fuller and squishier so I’m not sure that my process is all that accurate.

She has at least 7 wet diapers and 4 poopy diapers a day.

Should I be worried?