Its been almost two months since my last period i took a pregnancy test and it was negative. could i be getting a false reading? i've been having cramp like pains nausea and some lower back pain. but a negative reading

There : There is always a chance of a false negative, however if you are two months late then a pregnancy test would surely be positive at this point. Amenorrhea (absent period) is commonly caused by extreme weight fluctuations, hormonal imbalaces, stress/anxiety, thyroid problems, etc. If your period does not come in another month or so see a doctor for an amenorrhea work up, or if you feel more comfortable see your doctor for a blood pregnanct test, which is definitive.

When did you take : The pregnancy test? Was it at least a week after missed period? Did you repeat it? 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 or med problems. #1 reason is pregnancy.