My first ultrasound, Ramzi theory suggestions PLEASE!

Okay so today I was supposed to be 9 weeks but I went to have my first ultrasound done and they say that I am actually 7 weeks & 1 day & that kinda blew me because I thought I was getting so close to the "safety zone" Of 10 weeks but it's okay because they said everything looked GREAT on my ultrasound and the baby is measuring perfectly, so I am one happy momma! My due date was initially July 10th but is now July 24th. Here is our little peanut, heart rate is 154 beats per minute! Btw this is over the stomach, not trans vaginal.