How weired can be this i'm very sad :(

Ruby • TTC # 1 since september 2013 and thank god i`m finally pregnant!! Due on 28 Feb 2016 :)
I am on clomid 100mg this cycle,I went for an ultrasound last Friday CD 12 and I had 2 follicles that were maturing the largest one was 1.45cm plus 6 small...but the doc didn't gave me the trigger because they where not matured enough... He told me to go on Monday so today CD 15 and my follicles were all small and the largest was 0.85cm...and the doc did not gave me the trigger and i done an a clearblue ovulation test and it was peak !what is going on in my body !!? Have to go for a blood test on CD 21 to see if I ovulated...any one experienced like this situation ? Did I miss my chance this cycle ? I bd CD 10 13 and 15