My period cycle is of 40 days. My Last period was on 24th oct... after that i had sex with my boyfriend on 3rd, 17th & 21st nov..and all three times it was with condom...and after sex i had checked whether the condom was broken but it was not...it was safe sex..But after 21st nov i started getting odorless white milky vaginal discharge but it use to come only after bowel movement rest whole day i was dry and it continued till 21st dec... my period was due on 4th dec but i didn't get it on time after a week i did urine pregnancy test and it came out negative.. on 13th dec i took primolut N for 5 days to get the periods..and i got periods on 22nd dec.. bleeding was like normal periods but the flow was very less.. usually my periods last for 6 days with heavy flow from day 1.. but this time the flow is so less that i require 1 pad per day ..are there any chances of getting pregnant .. i dont have any other symptoms of pregnancy...and i dont want to get pregnant .. i am unmarried 21yrs old.