A fertilized egg takes about 7-10 days to journey down the fallopian tube and towards your womb where it will implant and set up shop for the next nine months. Some women notice "implantation bleeding" that they often mistake for spotting, or a light period, during this time, as some blood may be released when your tiny little blastocyst (scientific term for microscopic baby) implants into your womb. Depending on the date of your ovulation, tracking any spotting can help clue you in on whether you conceived.