Implantation spotting?

So the 12th of this month was my positive ovulation test. Me and my husband did the deed alot! Lol I've had cramps and white thin discharge so I've been wearing liners for the past few days (tmi sorry) today I went to the bathroom and noticed a pink spot on my liner about the size of a dime, nothing more. So I wiped and nothing...waited an hour and checked again, nothing. Just one spot. Could this be implementation or is it too early for that?