clear blue easy fertility monitor

Hello I had a miscarriage back in September that I had to have a methorexate injection for. So I am not sure when to expect my period or ovulation. I had some light spotting/bleeding November 27-30th but I wasn't sure if I should count that as my period or not so I didn't set my monitor I was trying to use OPK's to try to detect ovulation on December 14th which would be CD16 I think I had a positive OPK but when I took on the next day it was negative and then on the 16th it was def. positive again the test line was darker than the other line. I tried to turn my CBEFM on to see what it said but by the time I got it to where I could test I was already on CD20 and it gave me a low reading. So I stopped taking it assuming I had ovulated on the 16th. However, this morning my temp spiked up to 97.7 my coverline according to fertility friend is 96.6, my temps have only been 97.0-97.2 so I decided to do a test on my CBEFM and it is giving me a High reading. Is it possible I haven't Ovulated yet and am going to, or did I miscalculate ovulation and the temp rise today was due to ovulation? Sorry this was so long but I wanted to give you all the information for a more accurate answer. thank you!