PREGNANCY CALCULATOR
Enter the date of the first day of your last menstrual period (LMP):
DUE DATE RESULT
Probable date of conception:
Foetal Age Today:
Best date range for NT scan:
(12 weeks 3 days to 13 weeks 3 days)
Morphology Scan Date:
(19 weeks)
First Heart Tones by Doppler:
(11 to 12 weeks)
Best time to evaluate cervical length in patient with risk factors:
Best time for routine anatomy ultrasound:
(18 to 20 weeks)
Estimated Due Date:
It can also be used to determine the ideal timeframe to book a Nuchal Translucency and Morphology scan.
– For the NT scan, the best window is from 11 weeks and 6 days to 13 weeks and 6 days (CRL 45-84mm), but to get the clearest view of the foetal bladder and heart, the optimal time frame is 12 weeks and 3 days to 13 weeks and 3 days.
– For the Morphology scan, it is best to schedule it after 19 weeks but before 22 weeks.
