opinions needed

Maranda

I had my period from July 5-11th was intimate on 12th 13th and 16th on the 13th I had pink clear cm I didn't have opks and live far from town did I ovulate then? also fast forward to past few days my boobs have been sore and today had cramping in my lower left abdomen and left lower back could that have been implantation cramping? also when should I test thanks!