TMI implantation bleeding!?? Please help???

So 2 days ago I had so spotting, ever so light and only once. Today I had some heavier spotting like pinkish blood, just once. I put a pad in as I thought I may start bleeding but a couple of hours later no blood on the pad and nothing when I wiped. Just now I went to wipe and I had like a light brown discharge when I wiped? And that’s it. I’ve had a back ache and headache for 3 days and thrown up a couple of times... since I was 5dpo. Could this “bleeding” have been implantation? I’m confused 🤷‍♀️