Hello, The sonogram findings indicate that the pregnancy has miscarried. A collapsed gestational sac indicates that there is demise of the embryo. Persistence of morning sickness could be due to the elevated level of hormones that may take several days to decline, up to a month. A serum beta-hCG titre at alternate days should clinch the prognosis; absence of doubling up on alternate days clearly indicates a missed pregnancy. You should consult her doctor for further support. Take care.