Was the sex too bomb or could it be implantation,?

So I possibly ovulated Tuesday. I had lots of cramping Friday night through Sunday. On Sunday morning my husband and I had sex then I peed - because no UTIs for this bitch. Then like half an hour later I went to the bathroom again and there was the smallest tinge of a pinkish reddish spot -almost stringy but very tiny on the toilet paper. I only saw it once with the wipe and have had nothing since. At the time I thought it was just because of the sex. But now that my mind is constantly trying to grasp at staws I'm wondering if it could have been implantation. Idk what do you all think??

Also I know the odds of implantation are low I'm just throwing it out there.