Advice needed please

I am 13DPO and not due my period for another 5days and yesterday I had a very light amount of brown blood then today it is very light pink not enough to cover a pad but popped one on just to protect my underwear, this is all new to me as I have never been early as far as I can’t remember and normally by the second day I’m on heavy as my flo is heavy normally from start to finish so could this be implantation bleeding it doesn’t feel like I’m on my period, this is my first time tying to conceive. Thank you in advance