Hi D.,
This is the begining of your baby's process for sleep. Much of how she will sleep will depend on how you handle it with sleep training and how her personality is. I do a lot of sleep training as a post partum doula so I've seen all kinds of situations, at 2 weeks, this is normal.
My first suggestion is to pay attention to when she does a "cluster feeding" which is a lot of eating over a 2-4 hour period of time. For example; 2oz at 4:30, 1 1/2oz at 5:15, 2oz at 6, another 2oz at 6:30. She may be extra fussy at this time too. When you see this it is usually a sign that she is "storing up" to do a big sleep. Pay attention to how long she sleeps after this feeding and if it seems to be a deep sleep and/or slightly longer that her other sleeps at night, then THIS is the sleep you pay attention to. This is the sleep you want to expand from 2-3 hours to 4-5 hours, to eventually all night.
Also, are you swaddeling? I highly, higly, higly reccommend it. The BEST, BEST, BEST swaddle blanket on the market is the miracle blanket. You can only buy it on-line at www.miracleblanket.com. Other blankets with the velcro change shape after you wash them enough and your baby grows. I've used the Miracle Blanket for 13lb babies!! Also a pacifier works wonders for some, not all, but some babies. And don't worry, it wont destroy their teeth. Besides, it's easier for a child to break a pacifier habit than a thumb sucking habit.
Also, try the "shushing" technique. Babies like that a lot, find a rhythm and keep shushing. If your mouth gets dry, get a sound machine that has a "seaside" or "ebb tide" option on it, but be careful, some of those seaside ones have a sea gull that squacks every 90 seconds or so and it can blow everything you worked for.
Finally, I recommend the book, "Happiest Baby on the Block" by Dr. Harvey Karp. It is the sanest advice you'll find and it doesn't involve torturing your baby by having her cry herself to sleep until she passes out from exhaustion.
Good Luck,
L.