I took a pregnancy test Saturday morning and it was negative but I took another one this morning to make sure and it was also negative. Could it be two false negatives? If I were to get pregnant it would have happened at the beginning of October, but there was no intercourse. I've had 2 periods since then but the first was really light and irregular and the second was heavy and irregular and I took vitamin C so I'm afraid I might have induced them. I feel nausiated in the mornings but I never throw up and it goes away not long after waking up and I do sleep on my stomach and also my areolas have began changing, like getting bigger and darker. Is it possible to get two false negatives?