it still works IM.
I've done about 6 shots in my life, all IM.. the last 4 produced two kids. (did 5000iu one sunday, 5000iu the next sunday, 9 months later I had a kid... did the same thing for my 2nd kid as well).. the 1st two I was probably 19 and just felt like trying it out, gave me a gyno flare-up. lol