Confused!!

Keosha

I had a p eriod in november on the 17th to the 21st. I had sex on the 3rd of December came back on my cycle the 7th of december. And then had sex again on the 18th of December. Now im very confused cause my periods were to close to each other. And then i had sex on one of my ovulation days. Can somebody please tell me whats going on. Could i be pregnant