Transvi Ultrasound...Will it provide answer to...?

Before 12 weeks, most babies start out measuring the same length. These measurements are very accurate and can tell you how far along the pregnancy is. Sonographers measure the baby from crown to rump (CRL). The number of mm or cm the baby is correlates to how far along the pregnancy is. For example, a CRL of 1.77 cm correlates to 8 weeks 2 days. 8 weeks 2 days means that the baby was created 6 weeks 2 days ago (a woman is already considered two weeks when the baby is made). I hope this helps.