Hi, I am 28 years old. my LMP is 16 Oct 2016 and I haven't got my periods yet (28-30 days cycle). i took home pregnancy test last night with prega news and it turned out negative. i have almost all pregnancy symptoms like nausea, constipation, frequent urination, fatigue, etc. i have experience light brown discharge day before my expected period (only when i wipe). i think i am pregnant, but negative test...please guide me