Nate,
Hi, the reason i responded to your post is because my uncle and i just had a talk last weekend about doing pullups. they have a place at work where they do them and he couldn't do them either. he has been working out and said that it took him 3 weeks to get where he could do them. i will ask him this weekend to see what kind of exercises he did or how he made it to where he was able to do them and then will post back on here to you. good luck.