Yeh i was going to ask if you have started solids yet? Jesse has been FF since 9 days old and use to only poo once a day also and since he's started eating proper food he now does anywhere between 3-5 poos per day! Theyre not runny though.. but not hard.. kinda hmmm.. like an uncooked cake mix lol thats all i can think of.
I hope she is ok and the results come back good.