Diarrhea?

FTM .. Lo is 11 weeks old & is EBF. She went from pooping every 3-4 days mustard yellow playdough texture to this for the past week. She also goes daily now .. a few times a day. She’s also been having a lot of “sharts” lol! Looking to see if anyone has any advice. She has an appt this Friday with ped. Thanks!