6 month postpartum and pregnant??

Christa.

So I’m six months postpartum with my daughter. I have had some symptoms which I believe to be implantation. I have not had any bleeding, though. It could be my period but it’s just strange. I’m one-sided cramping, my dog is super attached to me, and I’ve been hungry and dizzy on and off. I have no idea to test because I haven’t had a period and am breastfeeding. I have tested and all results have been negative... any suggestions? Or could this just be my period?