Mama, yan talaga ang best na tanong para sa OB mo, every pregnancy is different, at ang dating ng yolk sac at fetal pole ay nag-vary talaga sa bawat mama! Kaya please make an appointment with your doctor para makita nila exactly kung ano ang makikita sa ultrasound at ipahayag kung lahat ay okay, mas makakatulong sila talaga kaysa online advice. One of my mum friends was anxious din about the same thing, pero ang OB niya ay nag-explain ng timeline at natuwa siya na nakita niya agad everything on schedule. You'll feel more at ease once you get checked, yung peace of mind na yan, priceless talaga! Take care, and don't stress too much while waiting for your appointment.