On the pill n always use condoms) implantation bleeding is only light spotting right? my period was lighter than usual but there was red blood flow

Light spotting is...: Light spotting is just light spotting. Only after a positive pregnancy test, can one look back and say that the spotting might have be related to implantation. At the time of the spotting, before confirming a pregnancy, one cannot tell whether or not the spotting is related to implantation. Thus, if worried about pregnancy, one can do a home pregnancy test 3 weeks after sex.