I had my period two weeks ago, on Monday I noticed blood when I wiped and yesterday it was a brownish colour that came out. I went to the doctor and he did a pregnancy test but it came out negative. Can I be pregnant and just be having implantation bleeding and if so can I take the antibiotics the doctor prescribed to me?

You are not pregnant. Takethe antibiotics the doc gave you. Maybe the inf. You have is causng the spotting?