I'm freaking out

well as most of you guy know I have a anatomy scan yesterday and th3 tech told me it's a girl i was told me ultrasound can be wrong but I ask about Doctor who came in cause they couldn't get a good reading on the heart so my question is if 2 people say girl it's a girl for sure I'm asking cause my mother bought like 6 little girl outfits from carter out here soo im freaking out that it might be wrong please help me