If the doctor took a sample of the amniotic fluid he could tell. Because there is DNA in the amniotic fluid. But someone can usually guess at 16 weeks on an ultrasound and 20 weeks a person can usually tell for sure. kittenbrower Â· 9 years ago.
1 Pupusas Revueltas have a filling made of a mixture of cheese, chicharrones and refried beans. 2  Pupusas de Queso y Loroco have a filling made of a cheese and tropical vine flower (Loroco).
Pupusas: The pupusa is a popular El Salvadoran dish made of a thick, corn tortilla filled with anything from meats to cheeses to refried beans to pork rinds.Pupusas can be purchased from pupuserias, pupuserÃ­as as well as streetside. vendorsupusas: The pupusa is a popular El Salvadoran dish made of a thick, corn tortilla filled with anything from meats to cheeses to refried beans to pork rinds.