Missed period and now spotting very light pink discharge. my menstrual cycle is very regular, 27 day cycle. never missed a period before. pregnant?

Hard to guess: It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a reliable result if done correctly. One can test about 3 weeks after sex (3 weeks after when conception might have occurred) or 1 week after having a "weird" period. An Ob-Gyn doctor can evaluate if persistent or worrisome symptoms.