Dear biljana - the most fertile time is two days before ovulation, the day before ovulation, and the day of ovulation. Since your periods are only 24 days long, you likely ovulate somewhere between days 10-14. Thus, it is very possible you were fertile at the time of your unprotected intercourse. I recommend waiting until you are a couple of days late for a period to test.
I get the pains on my left side and i was told they are ovualting pain, and this is when you are fertile ???