Is my period really late or is it my body?

Lupita

My period is late! My last period was on November 29. Then no period at all for December. I took a pregnancy test on December 29 and it was negative.. I always have regular periods every month. I never been pregnant before so my period comes every month no matter what.. My period cycle always starts at the end of the month and ends a fess days at the beginning of the next month.. My period last 5 days.. I’ll post my calendar for you ladies to get an idea.. my husband and I have been TTC for more then a year and we both got checked and we both came out normal the Dr said just to keep trying. I started tracking cycles and we BD every day in my fertile window during my cycles and no luck then we tried every other day and no luck then we tried 3 days after my ovulation and still no luck. I tracked this month of December and we bd a few days as you can see in my cycle for this month.. now I usually get my period towards the end of the of the month which according to my cycle I’m 2 days late..

Update:: last night I went to the bathroom and I saw a slightly spot of period. So for the month of December no period at all, my period just started yesterday January 1st which this has never happened before at all! I have had normal periods every month which now I’m concerned and worried if something is going on with my body that I don’t know about.. has this happened to any of you ladies?? Should I be worried??

by the way I track my fertile window with OPKs test from premom and Clearblue to be more accurate.