My last period date was 29th of november and I had unprotected sex with my husband on the 5th day of my periods on 3rd of decemeber.. That's why I had a contraceptive pills within 24hours.. And I was supposed to have completed my ovulation cylce around 25th or 26th but today its already 10th of Jan and still missing my periods.. I have had several test with the pregnancy test kit but the result showed positive once and rest of the times negative.. Is there any chance I am pregnant?