First Ultrasound

Hello everyone... Im 6 weeks 4 days according to first day of last period. I have my first ultrasound tomorrow and really scared. Ive had 1 baby now 2 and miscarriages in October 2014, July 2015 and December 2015. 2 d&c at 8 weeks and 3rd naturally at 4 weeks. Im booked for external scan and internal incase cant see much. Anyone have any pics of baby at 6 weeks either internal or external scan? Or anyone had multiple miscarriages and gone on to have a rainbow baby? Tia xx