Hey everyone...I just wanted to get someone elses opinion on this one

I am breastfeeding so my period is here there and everywhere. Yesterday I had a really small bleed of really dark red blood and absolutely nothing since. No cramps, no bloating like I usually get when I am getting my period. My hubby and I had unprotected sex about 2 weeks ago (we are not trying not to have another bub ) Do you think this could be an implantation bleed?? I am really confused right now. I would just love someone elses experiences if they have been through this.