Negative Pregnancy Tests? Has this happened to anyone else?

[daisydog]

Hi
My best friend thinks she's pregnant (1st baby) she's got all the right symptoms - 6 days late (she's regular as clockwork) sore boobs, hungry, tired, weeing all the time...but she's now done 3 pregnancy tests that have all been negative. Has this happened to anyone else? She thinks she feels pregnant, but has anyone else had negative pregnancy tests and actually been pregnant?
My only slight concern is that she was complaining of having some crampy period pains last weekend - but I definitely remember having these when I was early pregnant with my boys, so I just assumed it was that.

Any thoughts gratefully received - I really don't know what to tell her!

What brand is she using?

I got +ve with clear blue when first response has given me a -ve.

False negatives are fairly common. Maybe she could try again in a couple of days.

Yes would second to try in a couple of days if no af by then.

This happened to me and a test eventually showed pregnant a week after my af was due. However I knew I had ovulated (and therefore conceived quite late in my cycle.)

Tests assume you ovulate on day 14 and then by 10-14 days later your pregnancy hormones would have built to a level where a test would show positive - if your friend ovulates on say day 19 in her cycle a test wouldn't show positive until 14 days or so after this.

some tests do require lower hormone levels than others which is why sometimes one test may give a positive and another a negtive.

I had 7 false positives with my first DD, i didn't belive them because for some reason i just felt pregnant, it took a blood test from the doctor to tell me i was pregnant.

oh - thank you everyone- that's so encouraging - I'll text her now - not sure which brand she tried this morning, but I know she used first response last weekend - might recommend clear blue. Thanks so mcuh - was feeling very useless and unhelful friend. keep your fingers crossed - she's so desperate!!!