Hello, thanks for using health care magic.A positive pregnancy
test and a history of absent menses indicates pregnancy in a sexually active woman unless proven otherwise. Expression of symptoms of pregnancy is individually dependent with some women having just a missed period and later a growing abdomen.
Its possible to have other pathologic conditions that will have increase beta HCG
(hormone tested for pregnancy and produced by the placenta) in blood such as some tumours. However, this remains a little far fetch because you should have started having altered general condition, weight loss
etc which are in favor of that.
What you need to do is to meet your obstetrician for an ultrasound
to investigate for viability, location, number and gestational age
of the foetus.
Best regards and hope this helps.
Dr. Achuo A. M.