Ay, alam ko yan, ang waiting period talaga ang nakakapanic, ate! But honestly, please text or call your OB right away about the spotting, even if it's minimal lang, better to check in than mag-worry ka lang. At ang nausea mo, tell her rin next visit so she can help.
A few of my mum friends had similar situations where the embryo showed up sa next ultrasound pa lang, kaya siguro lang ang repeat scan mo sa 8 weeks. Cramps at heavy bleeding ang big concern usually, so if walang cramps like you, that's a good sign. Just rest, stay hydrated, at focus sa healthy habits muna while you wait para sa next scan.
Fingers crossed for you, mama!