i recently had lapchole, blood preg test was neg, ct scan revealed enlarged uterus w/two embryos, 1 not as developed as the other, had light periods and now no period. do not know how far along embryos were. having an ultrasound the 20th. ct was 1st of feb., surgery was the 12th, gyn visit the 6th could not feel anything. how can this happen, had tubes tied.