hello every1 i had an ultra sound at 5weeks(internal and external) because i had alot of cramping and the doctors wanted to be sure that everything was ok thankfully it was...then i had to have another one at 8 weeks(internal and external) because i was spotting and i had alot of cramping again and once again bub was great...well now iv heard that i might have to have another one for down syndrome at around 12 weeks im almost 11 weeks on tuesday and im abit concerned that all these ultra sounds might harm my baby what are your thoughts on this... 8-[