Likely to be implantation, what do you think?

Periods not due until the 13th of june. I started spotting last week.. a pinky colour, only when i wiped and a few drops in a pad here and there. Nothing like a normal period which is usually very heavy and dark. This only lasted three days. Since then, i've had little like random shooting pains in my ovaries! What was your implanting like?! Just wondering what everybody thinks. Waiting to do a test, but please give your opinions! Thanks in advance.