I'm on Qlaira and forgot to take 2 pills (days 17 and 18) and i had unprotected sex on day 14 (which is usually ovulation day) but he pulled out. I continued taking the pill and am now on day 20. I have now gotten a break through bleed. Is there a chance that I am pregnant since i've gotten the breakthrough bleed and I did take the pill on day 14?