Could I be pregnant?

My cycle is normally 28-29 days & yesterday would've been the 28th day for me. No period. Today is the 29th day, no period. I had sex Dec. 17th, and ovulated around the 20th or 21st. Could I have gotten pregnant & should I test? Its been about 3 weeks since the sex.....

Obviously you should test if you're late.

Any time you have sex there is the possibility of pregnancy.
We can't stick our heads in your uterus to tell you that.

You could be pregnant, take a test  

Quoting 花木兰:" Any time you have sex there is the possibility of pregnancy. We can't stick our heads in your uterus to tell you that."

  What an image that brings