Got my IUD taken out, we are TTC!!!☺️

Hannah
So, I got my IUD taken out on October 12th. I had it for a little over a year and a half. It caused me a lot of problems so I decided I wanted it out. But my SO and I decided we would like to try to have another baby (I have a two year old little girl! She's perfect! But her dad and I are no longer together cause he cheated and was a deadbeat! My SO now Is such an incredible father to my daughter, he loves her as if she was his very own!) 
Anyways, I got my IUD taken out October 12th, I never got a period until over a month later, on November 14th and even then it only last 3 days (ended on the 16th) I was expecting to bleed ALOT!!!! Figuring I hadn't  had a period since 2014 before I got pregnant. I had taken about 5 at home pregnancy test through out that time, all negative. My SO and I are very sexually active we had sex almost every day, and made sure to do so on my obvulating days! Well... today I was supposed to get my period, I have no signs of it coming, no cramping, no spotting, no bleeding, nothing. Any advice as to what could be going on? Could I be pregnant? Should I call the Doc and go in? 
P.S this is my first time ever posting on the app☺️