Well.. if the first day of your last period was 12 December and you had unprotected sex 15Dec then it is highly unlikely that you are pregnant.
Did you doctor do a p4 draw (to check your progesterone levels)?
It sounds as
www.naprotechnology.com www.creightonmodel.com www.onemoresoul.com There can be more than one patch of fertile cervical fluid in any given cycle. What method did you use to cross check? (Temping, OPK's, montior, ferning sco