Hiya,
Im 24 and i came off the injection November 2007, and been trying for a baby since with no luck.

My last period was normal however 2weeks and 3 days into my cycle i spotted for 2 days and had cramps for 3 days.
It wasn't a bleed just a pink discharge, on the first day it was quite a bit too.
But not enough to have to wear a pad.

Is this too early for imbedding pains?

I went to the doctors and they suggested ovulation. I have never had this happen before during ovulation plus i thought ovulation happens between the 10th and 15th day.

The ony other symptoms i have had is feeling nausea and light headed.:

Regards
TSC

Hmm, well, you could be pregnant, implantation spotting happens at different times for different people.
Unfortunately, the best thing you can do is wait until a week after the next period is due and then take a home pregnancy test.
Good luck! Let us know how it works out!