I have been spotting very light for almost 3weeks. Its brownish-red on the underwear but pink when I wipe. I would like an opinion before I call a doctor for blood work. Fìancè and I had unprotected sex 5x in one day about 3 weeks ago.  I'm also 5 months late getting my period. Quit birth control after being on it for 10 years.  Please give me an opinion on what it could possibly be or if I should call a doctor immediately.  Thanks