I had my period on Dec. 12 - Dec. 15. I usually have a 28 day cycle. I had unprotected sex on the 25th of December. Which is day 14 of my cycle. This time after 2 days of sex I got my period, which was like 11-12 days earlier. On Dec. 27th I started spotting very light, until like later in the day it got into a period like flow, not as heavy as usual tho, only at night it filled my pad,(sorry for tmi), but it's not heavy its pretty regular. That same night, on Dec. 27th, I had unprotected sex again, even tho I was lightly bleeding, is there a chance of pregnancy? If so, what are the chances?