Ang cryptic pregnancy talaga napakahirap i-detect sa ultrasound kasi either very minimal ang pregnancy sac o wala pa talaga, so maraming cases na late ang discovery, one of my mum friends didn't know she was pregnant until 5-6 months na! Basta kung may suspicion ka, talaga dapat makipag-consult sa OB mo para sure, kasi kahit ultrasound sometimes hindi makita kung very early pa talaga or unusual ang positioning, at kailangan mo ng proper prenatal care agad.