if you had an ectopic pregnancy then it would show on the sonogram. pregnancy test could be positive due to leftover tissue. as it was removed it should be examined by histopathology test. sometimes hcg (human chorionic gonadotropin) producing trophoblastic tissue (it is similar to a healthy pregnancy tissue) persists inside uterus giving positive pregnancy tests. if your test comes positive then you should do titer of serum beta-hcg every third day to see if it is rising or falling. for further information consult an obstetrician and gynaecologist online --> <link>
my pregnancy test remains positive after abortion. why?