 [ Symptoms ] how can you tell if you are pregnant with twins  i have taken 2 home pregnancy tests and they both came back positive plus i missed my period 2 weeks ago the home tests were instantaneously positive literally took 10 seconds to see the positive signs   is this a sign of twins [ Disease ] not necessarily some women produce large amounts of hcg the hormone that is detected in a pregnacy test with a single fetus be patient you will either find out when you have an ultrasound most likely or when two babies surprise you in the delivery room those kind of surprises are rare anymore