When the period is missed, the girl can use the pregnancy test
kit already. Eg. if the last period started on 8 Jan, by 8 Feb, if
the period does not come, the girl can go pharmacy to buy a
pregnancy test kit to try out. It is 99% accurate (actually 100%
one!). Spoke with a doctor friend on this before. He said that
there is some element in the pregnant woman's urine that will cause
the test kit to change colour (forgot what the element called). The
kit will not go wrong. But for some women who really want to be
sure, they buy two or more brand to try. This is not necessary,
just waste of money only. But if these women really want to be
positively sure, no harm trying a few.
Last time my girlfriend got pregnant and she did not know. But she
complaint to me that her nipples felt sensitive and sore. This was
just before she realised that she missed her period. So, sore
feeling on the nipples can be another sign (but not sure if every
woman experience that or not).
Once the test kit shows positive. Go to a gynae to get a full
confirmation by doing an ultrascan on the tummy to see the shape of
the foetus. By now... it is 100% confirm liao!!!!
