I had an early vaginal US today. My last menstruation was nov 20th, pos OPK on 2 & 4 th dec. BFP on dec 15th. I should be around 7+4 days today. The OB who did the US said baby measured only 7mm and that's too small to be 7+ weeks. From what I read at 7 weeks baby should measure around 13mm.
Everything else looked fine and we could clearly see a heart beating.
Should I be worried?
Anyone else had this experience?