2 wk old hasn't pooped in over 48 hrs

Victoria • 29, married to a wonderful man, mother of 1, ttc #2.

I read that sometimes newborns can poo anywhere from several times in 1 day to 1 time every several days, we usually get 1 big poo diaper a day but she hasn't pooped since Sunday night. Should I call the doctor tomorrow or is this still in the normal range?