Period after sex..


Is it possible that right after your period ends it starts again?

I asked that question because my cycle came down 17th- 21th of this month, might I add it was already 2 1/2 weeks late, due to the fact it always came on time, but anywho, my SO and I had sex on the 25th, and I experienced brown dischsrge, even now today, same thing brown discharge to pinkish. I'm not sure what to make of it, at this moment I'll add as I stated in past post before I was on clomid from months March-may I stopped it after may since it showed I wasn't ovulating, but why would you period have come late? And I'm not sure why it's trying to start again, I have light cramps and spotting currently anyone have any info or experienced this please please answer!