Opk testing

Christina • I'm 25 years old. Mommy to a 3 year old, and a 5 month old 💗 Angel baby 10/25/17 🌈
On a 28 day cycle clearblue says to start testing on cycle day 11. Which I've missed since I'm on day 14 now. Does that mean I've been my ovulation day? It said I missed my "lh surge" for this month and to try again. I had sex on cycle day 13 and 2 other days after that. Could I still have a chance of getting pregnant?