3 days later after my period I’ve had a spotting!

So I had my period on 10/23/2017 to 10/28/17 , and my bf and I did BD the next day and the following 2 days till on 11/01/2017 I went to the bathroom to urinate and i noticed on the toilet paper there was like a pinkish blood and it went away right away. It didn’t last long, i think it was just for a minute. Was that normal? We are not using any protection , so we’re basically trying cause he would always finished inside me all the time.

And this is my log/chart for this month of November