How many ounces does your 7 week old or one month old drink?

So my baby is 7 weeks old and she usually drinks 3-4 ounces per feeding but everything I see online says she should be drinking 4! Sometimes she only takes 2 if she’s super tired and I try everything to keep her awake! Does this sound okay? We don’t go back to the doctor until March 4th, she’s been gaining weight and wetting diapers...