I've forgotten how old Abbey is. I think she's around 3 months? When i first got Zack he was just under 4 months, and the first night i had him, i put a leash on him (attached to a collar) and started walking. He sat and wouldn't go. He would go a little bit, and then sit down again, and refuse to go.
This is normal behavior, they generally don't know how to walk on a lead, and when they feel pulling, it's a natural instinct to resist, they're not being bad or stubborn, they just don't know how to walk cooperatively and they don't know what else to do but resist being pulled and drug.
I had a book called Puppy Pre-school, and i just did what it said in the book--practice a little bit each day, maybe 5 minutes, don't start out trying to go for a walk. Just start out with practicing the skills of walking together. The puppy will want to walk on its own a little bit, so which ever way the puppy goes, you go with the puppy, while holding the leash. If the puppy stops, you stop. When the puppy goes, you go. You can beckon the puppy to come rather than wait for the puppy to take the initiative to walk, but no forcing. If the puppy doesn't come when you beckon, don't insist.
The general idea is, in this preliminary stage, to let the puppy choose when and where to walk, so that it's fun and the puppy develops happy associations to having the leash and you attached to her. Only do it a short time and you can do it two or three times a day. You can also let her wear the leash around the house, just to get comfortable and to not think of it as something to resist.
If all goes as hoped, very soon, you will be able to walk and choose the direction of where to walk and the puppy will just go with you, and probably will pull you forward.
Zack was walking on a leash and enjoying walks within a day or at most two of doing the above. It wasn't like a difficult thing for him to get. But the first time i put the leash on him, he did what you describe. Then i read that part of the book, Puppy Preschool, and i just took him out and let him decide when to start and when to stop and pretty soon he shifted over into letting me decide.