I have read in several forums women experimenting implantation bleeding for 2 to 6 days. however noticed that docs here are saying only 2 days?

Only lasts 1-2 days: Actually, implantation bleeding is nothing else than a scanty bloody discharge of pinkish or brownish color. It occurs not in every woman and lasts normally just for a couple of hrs. Nevertheless, in rare cases implantation discharge may continue for 1-2 days which is the major reason why it’s often taken for the beginning of the regular period. A preg test will be pos. 2 weeks after if successful