So my last period was on January 24. I have a 35 day cycle. This morning I woke up and went to the bathroom and when I wipe I had brown blood on the toilet paper. When I wiped the second time it was light pink. So I put my tampon in and a couple hours later I had to pee so when I took out the tampon nothing was on it. So I wiped and nothing...This was the first month in years I didn't log I didn't test and I didn't even have sex this month but maybe once or twice. Here is a pic below of what my calendar looks like. Could it be implantation bleeding?