what should I be doing?

I had a negative opk on wednesday night (7pm), positive on Thursday night (11pm) and negative on Friday night (9pm). Since I took the test so late on Thursday, I don't know how long the LH surge lasted for, making it difficult for me to figure out that 24-36 hour window when ovulation will happen. My husband and I had sex last night, maybe 10pm. Was that within the right timeframe for ttc? Are we still supposed to try again today and tomorrow? I tried calling my doctor and she hasn't returned my call yet which is why I need some help here. My husband has trouble doing it consecutive days in a row so I only want to push this when it's really going to count. Thanks!