Hello, i experienced spotting the 16th of this month it lasted all day their was no flow. I didn t even need a pad it was very light pink sometimes brownish i had cramping with it also. Since then ive tooke 4 pregnancy test all negative I ve had nausea come and go my boobs have been achy & I m constipated this would be my 4th child. My period isn t due till this week. Did i take the tests to early? & my husband and i use the pull out method is it possible im pregnant?