Angela..
I did a search for this topic because I am frustrated over this very same thing now.
Awhile ago, Annette posted something about how to work up to pushups. I will have to search for that too.
Your post could have been mine. My husband recently went into the Police Academy and was boasting that the women in there could do forty full body pushups!! I remarked on how on earth they could do that and he said, "They train!!!" UGGGGHHHH!! I barked back, "Well, I train!!!!".
It really is disgusting. For the life of me I DO NOT understand how I can bench my bodyweight (135 pounds) yet am still not able to do more than 2 full body pushups. It is so different when I go from my knees to my toes. It seriously feels like you just plunked 50 more pounds on my back. It is horrible, and when I am trying to push them out (which is usually after many on my knees) it is hard to EVER imagine being able to do even 10!!!
I want to believe Annette and everyone else here that they will improve if you keep working on it, but this sucks!! I wonder, how much do you weigh??? I though maybe the fact that I am short with short arms but a high body weight might be making it tough. I mean, something must make it tougher for some of us. If I can bench my bodyweight, I should not assume that I have weak pecs, should I??? Or is it all in my core?? However, I can go down but as soon as I go to push back up, it is like "No way are you getting back up sister!!" LOL. It feels almost like there is WAY to much pressure on my shoulders. Maybe that is the weak link??
For some reason, this is very important to me. I WANT, NEED to be able to do these!!!!
I am seriously starting to believe that on your knees pushups are not doing anything for me anymore. I can also do them till the cows come home. I have tried to do full body ones on a 8" step, but that is even too hard to eek out 6 or so, fully rested!! Do you think I should raise my step to 10" or something.
I want to progress as the others say here, but the problem is, if you can't even do 3 full body, do you do 3 full body and THEN drop to your knees or do you do them from your knees and then try full body. I still want to do 30+ reps.
And I think what Yen said about Cathe bench press exercises is a crock of !%#@!!!! Cathe bench presses have helped me very little. I think going to the gym or loading your barbell with atleast 65-70 lbs, 3 sets of 10, is much more helpful in training to do pushups. At this point, I think it is endurance type workouts that are causing my demise. In MIS, I think I load my barbell at 35-40 lbs for bench. I could do a higher weight if I slowed down the reps. Pushups are after all more strength than endurance (when you can only do 5

If anyone has a program to train with pushups I would be most appreciative!!!!
Thanks guys...
Janice