Hi im 19yrs old with a 3 year old son. ive had reqular period that last 5 days everytime. i track my periods and my ovulation every month. i had intercourse on my ovulation unprotected n now i had started spotting for 5days straight exactly one week before my period is due. it was very light pink spotting. then i bled for 2 days then i continued to spot pink again. and that was it. i took 3 pregnancy tests when i started to spot. in the first two clearblue tests i took in the mornin i got 2 positive the next day in the afternoon i took a first response test n got a negative. what could this be?