Hi There,
It looks to me like you have a beautiful black Domestic Shorthair, and that she has been very well cared for! The stripes will likely disappear as the kitten gets older.
Hard to tell from the photos, but if the eyes are no longer blue, your baby is older than 6 weeks old, possibly closer to 8 weeks.
Thanks to you and your boyfriend for saving this precious baby!
Please keep us posted on how she does as she grows 
Regards,
PHKitkat


