Any advice

I only had sex once this month so far and it was in the third day of my period. My period ended on day five. We used a condom and I checked it with water and there were no leaks or tears at all so I don’t think any speed could have escaped. I use opks to avoid getting pregnant. On day 11 I had my peak lh surge. I don’t temp cus I’m not TTC so I don’t put in that much effort. There is no way I could have gotten pregnant right???? After you see your peak lh, what is the latest that your fertile window will end so I can start having sex again. Today is day 14 and I think it’s still too close to my lh peak surge to chance it