Not sure need help!!

My underwater is normally super clean now there is like a brown or blood look on it and very super light I’m not sure but could this possibly be implantation blood? I’m also not due for my period till the 10th of February and my ovulation days were the 29th -and 30th and we did the dd on the 25th and again a couple times on the 26th so is it possible for that or should I not get my hopes up?