11 month old baby girl has no teeth yet, should i be concerned? if so, what's the next step

No real concern: The eruption pattern of teeth is genetically determined, so there is really nothing that you can do to speed things along. I have noticed over the course of 30+ years that children who are "late bloomers" re their primary teeth also have delayed eruption for their secondary teeth... just food for thought.

Normal varies: I sometimes find teeth at birth and sometimes not until 15 mo. Later eruption is not evidence of a problem nor can you do anything about it.I think it is has benefits because there is a chance there will be less baby cavities.

Normal variation: I totally agree with my esteemed colleagues who point out that there is a normal range of primary (baby) tooth eruption and your baby girl falls into this normal range. That being said, I would just add & suggest that you bring her to a Pedodontist (pediatric dentist) around the age of one which is recommended for monitoring and advice for a long life of healthy teeth for your daughter.