Naps and bedtime advice/help!

Sarah

My almost 9 month old currently takes 2 naps a day usually. Wakes around 7:30. Nap at 9:30-11 and then 2-3:30. She starts getting tired close to 6 and I try to keep her awake for bedtime at 7-7:30. Sometimes fights it and sometimes doesn't. Today she fell asleep on the way home at 6 for a 3rd short nap.. I already know she will go to bed, the earliest, around 8. Not sure if she will fight it or not...

Asking if I should add in this short 3rd nap or does she think it's bedtime? Should her bedtime be earlier? 6:30? Thanks!