Ok so me and my partner had intercourse the 21 on last month and for two weeks ive been feeling tired sleeping alot , mild nausea, bad cramps and back pain on and off headaches and i took a test and it was negative all of a sudden i see a faint line going across my stomach ( when i had my Daughter my line Completely went away ) and even though its faint its clear enough for me to see it could this be a sypmtom of Pregnancy ?