Cramping On DPO 0 ?!

Chelsea • RIP Sweet Pea. 💞 01/25/2017- 03/10/2017👼🏻
 So Ive been cramping since yesterday like period cramps but with no spotting or blood. My period is far away from now. Lol 
I am DPO 0 today and have had Positive OPKs for the last 3 days, today included. 
Are these ovulation cramps or could it be implantation cramps? The DH and I have been BD as much as possible this month so fingers crossed.