Problems with Photo Stream

I have been trying to get the pictures from my Photo Stream on my iPhone onto my MacBook Pro. I connected them via iCloud and only some of the pictures uploaded into my Photo Stream on iPhoto. I have 949 pictures on the Photo Stream on my iPhone 4 and only 278 on my MacBook. All the pictures seem to be random, some of them are from all the way back to when I first got my iPhone, and the others are just random. I even tried creating another Photo Stream that I can access online, but it only showed 25 of the pictures. I want to get all of my pictures onto my laptop so that I can free up more space on my Photo Stream so that I don't loose some when I reach the limit (1,000). Please get back to me as soon as you can. Thank you.

 

I understand that it is a lot at once, but wouldn't it upload more over time? I have had my computer and phone under the same wifi for weeks and the pictures have not synced.

 

It is a mac, and I have pictures on my photostream (on my iPhone and a few on my mac) from over a year ago. So, there is no way that it is only stored for 30 days. I just don't know how to get them onto my laptop! ):