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i have been experiencing nausea for a week and a half. day before af was due i had light bleeding for two days it stopped and started .then light pink only when i wipe for two days. i have backache, cramping , a strange sensation in my abdomen .since the bleeding stopped my nausea has gotton worse and yesterday i wiped this is gross like green snot only a little blob. i have tested and it was bfn. i am 19 dpo . and really confused .i feel pregnant but the tests saying i am not i have two other children and never experienced it with them.i was just wondering if anyone has any advice i went to the doctors and she told me i needed a smear .i asked would that affect the baby if i was and she said they do not normally give pregnant women smears .i am waiting another week before i have to go for this smear and would appreciate any advice as the doctors was not really helpful. i cannot remember when i tested on my previous two i just know i was a couple of months