I was supposed to get my period on the 10th. Yesterday I got what like seemed to be the beginning of my period, (pink) it lasted a few hours and went away. Nothing was there this morning. I'm waiting for it to come back. If it doesn't come back I will test for pregnancy test. If it was "implantation bleeding " how soon can I test? Or how long should I wait to test? (I'm new to this so IDK all the abbreviations ! Sorry. )