baby oversleeping 👶🏻💤

My baby is 2 months and a half. She's been having a sleeping spree since last night from 10:30pm and is still sleeping. It's been over 14 hours. I hold her to feed her and she'll eat but asleep. I'll change her diaper and she just opens her eyes for a few minutes but she'll go right back to sleep. I talk to her and she'll wake up for a few more minutes but still she goes right back to sleep. Should I be concerned about this recent change in her sleep?? Should I ask her doctor if it's normal for her to sleep consecutive hours at a time for her age?? Has any of your babies slept for so long???