TTC!!

Hi I've been TTC for 4 months now my last cycle was Nov.13,2015 I use ovulation calculators as I don't know when i ovulate and each has given me different dates like 24,25,26,27,28,29 these are all different predicters I did online I don't know which one to go buy I did the deed on the 19,23,25 an 30th can i please have some insite I had a miscarriage/stillborn 5months ago on June 17 I forgot to mention that I have a regular 29 day cycle but this last cycle was 28 day when did i ovulate and how can i figure out how many days past ovulation I am