Concerning the first blood test you made, could it be possible that the test was done too early, and for that reason it got a negative result?
I was unfortunately sad to read the follow-up of @gentleshaid's comment. Lack of responsibilities apparently, which is not surprising if they are as young as I could guess from your blog...
Cheers, and thanks for this very nice and instructive blog!
you are not totally wrong with your assumption because sometimes, when it is done prior secretion time of the hormone into the blood circulation, it will return as false negative.
But in their case, she had already conceived unknowing to her. They came to come only when she realized she has missed her monthly menstrual flow.
To be specific, she came after about three weeks post sexual intercourse.
Ah OK. Then it was definitely not too early (I just didn't have that piece of information ;) ). Thanks for the clarifications, and have a nice week-end!