Ovulation? Implantation? Or just random spotting?

Kelsie • TTC Baby #1💕 Married💕

Hi guys!!!! So me and my husband had sex 3 times during my fertile week. I am having a pinkish brown tint to my discharge and it is more of a creamy discharge. I also have noticed that I have what looks like a bloody stringy tissue material when I wipe? Any guesses? Also I’m having cramps on one side my back is aching and my boots are extremely sore