abortion contractions vs birth?

I'm not even going to try posting this under my name because I know the witch hunt that comes up from any post mentioning the word abortion... but anyway:
I had an unmedicated abortion years ago when I was 20 and now I am pregnant again at 35. I was just wondering if those contractions are anything like real labor? All I remember is having very strong cramps that felt like my stomach was going to rip in half. They were non stop and extremely painful. I could hardly breathe and remember almost passing out from the pain. Afterwards I kept having pretty strong cramping and it slowly went away the next day. 
Does that sound anything like labor contractions? Or are they more intense?