Infant BM Question....

Mrs_Ellie • FTM.
FTM anxiety! My daughter is one week old and after day 3 she was done with the meconium poo. However, since then she has had only one "normal" poo and that was this morning. She is formula fed. Should she be having more poo diapers than just the one incident over 5 days? I was going to call my pediatrician but then she had the one poo.....I expected there to be more throughout the day.....but nada. Anyone with formula fed babies have experience with this? Should I worry about constipation? She is on Enfamil Infant.