My daughter started getting teeth at five months! They didn't necessarily come in the right order and one of her bottom side teeth never came in. It is a good time to take your Daughter to a Pediatric dentist. They can do xrays and see where the baby teeth are and will let you know if there is a problem.
It was an actual blessing my daughters bottom tooth never came in as she has spacing issues anyway due to a petite jawline. So that space has been filled with the other teeth now. She has lost 9 baby teeth and is only seven and these big kid teeth are much larger then her baby teeth. Needless to say it was a positive.
I started my kids going at 16 mos to the dentist, they love going and it helped ease my pain or worry when I questioned teething and such. All kids are different. My son didn't start getting teeth until 7 mos and his came in a weird order too, he got three on the bottom before the top ones came in, however xrays showed early they were all there to come in and have. He is four now.
I wouldn't worry too much. Good time to get her used to someone looking her mouth and not fearing the dentist. The younger you start them the easier it gets. My kids actually get excited when it is time for their checkups! Go figure since I dread the dentist! :)