Implantation or possibly cyst?

Kaelie

So last Thursday I was 5-6DPO and I had some really strong cramps that lasted about a hour, and Friday I just felt kinda crampy and sore. I ended up going to my Gyno who said it could be a cyst but since she didn’t feel one she is having me do a ultrasound this Wednesday.... my period isn’t due till the 16th or 18th. So with all that being said do you think it could be a cyst or was it implantation?