1st time question

Hi po,,, question lang po,,, LMP ko po is Dec. 9, 2010 dapat po ay 6 weeks and 2days na ako today pero sa ultrasound ko is 4weeks and 6days pa lang po... pwede po kaya makaaffect yung haba ng cycle ko kaya ganon? 38days cycle po kase ako eh... Sana po may makasagot po... #1stimemomhere 👋👋