I haven't had sex since March of this year. Now, I haven't had a period since November 2017 because I had a baby in August 2018 and have been breastfeeding, so the lack of a period never worried me but back in April, I remember being exhausted all the time and very nauseous. I took a couple of pregnancy test and they were negative. In May, I began having what I can only describe as round ligament pain and sciatic nerve pain, Confused; I took another test: negative. Fast forward to now, I literally can feel fetal movement. It presses against my csection scar and I've had 3 kids; so is it possible to be pregnant and have a negative pregnancy test?