Hey mama, kailangan mo talaga i-follow up with your OB agad kasi ang dating ng yolk sac and fetal pole ay dapat visible na around 5-6 weeks, so better to get clarity on the dating or if there's anything else going on, PCOS pregnancies sometimes have irregular cycles kaya baka off pa lang ang counting mo. A few of us with PCOS had similar worries pero after repeat ultrasound naging clear na lahat, so don't panic muna pero definitely don't wait, okay? Sending you hugs, alam ko how stressful this waiting is!