7 dpo implantation bleeding

hhph

Hey y’all, so today I had what I am 99% sure is implantation bleeding. In the beginning of the day there was a little more than in the evening and I saw it when wiping. It was light pinkish brownish - changed colors a tiny bit throughout the day. Very sticky. Very small, it’s not even hardly spotting. This evening after a whole day there was a tiny bit of blood in my underwear, very little. Waiting to see if it goes away tomorrow, that would make me more confident that it was implantation. Along with this I was crampy today on my left pelvic area and in my stomach. Going to test in 2-3 days. Wont let me add a picture for some reason. But what do y’all think? I should see a positive within 3 days right if it was?