Help please implantation or af?!

So I’m 13dpo and yesterday 12dpo I started having faint aches cramps then about hour later I got a bit of bleeding mainly when wiping but a little in knickers very pinky discharge looking sorry tmi, me and my bd then I thought that would be it at would be coming in full flow when I wiped a little pink still then nothing wore a pad over night and woke up to nothing on the pad went a toilet and had a little spotting and still spitting a little now I can still feel a kind of pulling sensation but no cramps please help