So my last period was on june 15 im suppose to be 8weeks with 2days i went to the dr. Today he did a sonogram n there was no baby he did a vaginal sono n there was no baby just the sac he told me that maybe i might be like six week n sometimes the baby is too small to show so i be worried has this happen to anyone else I mean i have had two pregnancy before n this as never happen to me should i think wrong is everything ok i meam i just dont know what to think ....