Is there a chance?

My cycle is average 26 days, my last period was 9/15, according to an ovulation calendar, my fertile days are 9/23-9/26. My hubby and I had on 9/24 abd 9/25, during my "fertile" and "really fertile" days. On 9/28, I felt a stabbing pain, and flutters like the normal monthly ovulation pain. So... on fertile days 9/24 and 9/25, possible ovulation on 9/28, is there a chance of pregnancy? Like how you all feel ttc, the waiting is unbearable! I've read all pertaining information, live experiences and suggestions from ppl is what I'm anxious to hear! Any advice or feedback is greatly appreciative.