Possible yes, likely no.
Don't worry, as I said its a thing of the past, and a guy is more likely to post something like that than a girl, because girls are more vulnerable, and if she posted something like that, a pedophile may discover who she is and try to meet with her. I highly doubt anything will occur because of this. As I said its a thing of the past. The past and the future are meaningless, its what you do in the present that counts.