T.C.
Be aware that your daughter is watching your reaction to this and making decisions about herself based on your reactions. Support her as if this is normal (it is). Her self-esteem for the rest of her life is way more important than a phase with potty accidents.
Is she still in diapers at night? We are still in night time diapers at seven and our fabulous pediatrician said not to worry about it until our daughter is nine. Of course we just had our first slumber party and diapers were a whole other issue, but we supported her in a way that she asked for and worked for her. I was thrilled that she felt comfortable asking for special support.
Our pediatrician says that sometimes kids just develop more slowly on the ability to feel the need to go potty in time.