Sounds typical to me. She can't hold enough food in her little tummy at this point to sleep much longer so you have to feed her when she wakes. As I recall, it's closer to 9 months they can eat enough to sleep through so for now you have to respond by feeding.
Two things that helped me a ton with the feeding/sleeping were the "tanking up" before her bedtime and to do a "dreamfeed", without waking her before I went to bed. These are both recommended by Tracy Hogg, the Baby Whisperer, in her books. So let's say you normally get her in bed around 8 or 9. Well starting at like 5 feed her frequently! Give her as much as you can get in her before you put her down. Then, before you or your husband, if he's taking care of her while you work, go to bed, you go in and give her a feed without waking her. If you bottle feed (or it's your hubby), you just give it to her while she's laying in the crib. If you are breastfeeding, gently lift her out and get her on your lap and latch her without waking her - it really works.
Other suggestion is swaddling - we always swaddled at bedtime which I think kept her asleep longer. The MIracle blanket truly was that for us. http://www.miracleblanket.com/
Good luck. and congrats!