Sounds entirely within the range of normal. My just-turned-seven-year-old has lost 8 teeth, always in matching pairs less than a week apart, sometimes just a couple hours apart.
She's also a wiggler, always excited to get the tooth out, and wiggles until it bleeds, then wiggles some more. Not a worry, though - the tooth won't wiggle until the root dissolves, the root dissolves as the adult tooth pushes out. She wiggles constantly as soon as a tooth is loose. She unintentionally yanked one out as she was wiggling and we drove across a set of train tracks (bump-bump, tooth out).
My only concern is as the second incisors (on top, bugs bunny smile for now) are starting to come in, and the top teeth are too big (mine were too big, too, had to have two top teeth removed AND have 5 years of braces to fit all my top teeth inSIDE my mouth), and crowding and coming in crooked. Oh well, orthodontics fund has been started. We're hoping that since she's only 7, and going through a growth spurt to end all growth spurts, her upper jaw will grow soon, too, and better accomodate her large top incisors (strangely, bottom incisors are small-normal really- like mine. gotta love genetics).
Enjoy the gappy smile while it lasts - take lots of pics - and if you're really concerned, get her to a pediatric dentist to set your mind at ease. Also can't hurt to see if they're coming in straight, and how soon. If orthodontia looms, start saving the pennies NOW.