My girlfriend has a regular period; however where I'm from the pill is a taboo so she has not started to take the pills just yet. We had protected sex on day 13 of her cycle the day she was ovulating I used a condom with spermicide and finished outside of her but today on day 25 she said she thought she had her period but then said it was too little and that it was only a stain. cOuld this be implant ion bleeding or just normal spotting befor her period arrives she has a 26-27 average length cycles