Confusion with FF and LH surge

Not sure if this is the right place but I have been cross-referencing a natural tracking cycle with Fertility Friend...and its causing me some grief. According to the fertility clinic my early morning blood test on Tuesday showed an LH surge. However, I had a temp dip (36.35) degrees on Monday) followed by a move to 36.63 on Tuesday and huge surge on Wednesday (37.21) to back to 36.63 today???

I have also been sick - no fever - but bad cough as well as some interrupted sleep. I temp vaginally and at the same time (but today that was after only two hours sleep as I spent an hour awake coughing). Could that be affecting my temps?

Also - if you don't ovulate after a strong surge does that mean I should have a trigger shot? Or is it just my hormones are all over the place after the miscarriage?

Help!