Smeg plan advise please

My SO and I have been ttc for over a yr with no luck. I was reading about smeg plan last month, and we decided to try that for this cycle. I felt like everything was working perfectly, we bd on cd6 and cd8, and we were supposed to again today on cd10 BUT my SO is going to be staying away for work tonight :( I have been doing digital OPK since cd7 which have been low fert. until today it said high. Now I dont know if we should bd on cd11 and then then if peak is still not detected every second day til that happens, or if we should skip to cd12, the next time we were supposed to bd if peak is not detected before that.... also, if peak is detected tomorrow does that mean we have missed our chance this cycle since we didnt bd that much around the fertile window??

Please if you have taken the time to read this please take the time to answer, this is causing me to really stress :(