Did I possibly conceive naturally? Please read the brief description.

I had a failed

IVF

cycle in November. Once it was confirmed via blood, my period arrived 4 days later as expected. The spotting at the end of the period lasted longer than my usual 4 day flow. The whole month of December I had so much cervical mucus which is very rare for me.

My period should have arrived December 21st. It still has not shown up. I tested on Christmas (at 3 days late) and it was negative I don’t have any other symptoms apart from light cramping since my expected period which drives me nuts bc cause I think it’s coming and it doesn’t.

My doctors want me to call them on 1/2/2020 if it hasn’t arrived (around 12 days late) and I don’t want to test again because I’m sick of the years of BFN. I’m supposed to start a new cycle in early January. Ahhh so lost any help is appreciated.