Implantation maybe?

Sa
Yesterday I was buckled over in pain bawling my eyes out. It felt like a 500 pound man was standing on my uterus and right ovary. It was terrible! Today is definitely not as bad, but there was still a subtle ache. I'm 7 dpo and have no idea what this could be. Has anyone else had this? I was thinking maybe implantation but I really have no idea.