Period was due a few days ago and still nothing. no pms symptoms either. had sex the night b4 ovulation, but still got neg test sunday. whats goin on?

Period: Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg released), travel, hormone irregularities, drug use, meds (i.e., birth control) or medical problems. #1 reason is pregnancy. Hopefully you did the pregnancy test after your period.

Pregnancy possible: Pregnancy is still possible, but you may have taken your pregnancy test too soon. A regular home pregnancy test is more likely to give reliable results after the missed period, than before. You could now repeat it and see.