HELP! implantation or period?

WARNING PRETTY DETAILED 😂 okkkk so, I have been feeling a bit iffy and as you can see I had sex around ovulation. so today I woke up and decided to take a first response test (9dpo), maybe tmi but whilst peeing in a tub for my test I noticed some blood but decided to do the test anyway and low and behold it was a vvvfl. barely visible but definitely there! I checked out the blood with a baby wipe and it was brown in colour but there wasn't a lot (when I get my period I usually wake up covered in blood) I put a pad on anyway, at around 11am and only just now have I changed it as there was barely anything coming out, it looked almost black on the pad but when wiping it's looks quite red? heeeeelllppp what do you think is going on here!!