normally gestational sac (no embryo and yolk sac) pa po makikita sa ultrasound pag 4 weeks pa po. 6 weeks onwards makikita na through Transvaginal ultrasound kung may laman na po (embryo and yolk sac). I was 6 weeks when we saw an embryo and meron na syang tiny heartbeat though hindi mo pa maririnig. 😇
Roxanne Del Carmen