Period? Or Implantation?

I started bleeding August 10th-14th and had cramps and the bleeding was light and was practically nothing the 13th and 14th. I just woke up this morning feeling extremely nauseous, and I'm not sure if this is just random or a symptom. I had an ultrasound of my ovaries yesterday (I have problems with cysts) and the doctor didn't say anything about seeing a fetus but he also said I'd get my results from my ultrasound in a couple days 🤷🏻‍♀️🤦🏻‍♀️ I have no idea what's going on with me.