Confusing...blood?

I have the implant for contraception and I know that it can make your periods irregular or confusing. And mine definitely have been since I got it last April (so I’ve nearly had it for a year) however I bled a little bit about 2 weeks ago and now I’ve just found a few drops of blood and when I wiped there was brown blood there. Just not a lot of it. I’m confused? And my boobs were really hurting last week so it’s odd. They never usually hurt. And I’ve been feeling so rubbish this week and it’s only Wednesday. Someone help a girl out 😩🤷🏼‍♀️💚