No baby

Savanna • Hey 😁 my name is Savanna . Hubby and I are pregnant with baby #3 and we are hoping for a girl . 🎀
Went to first ultrasound at 4w6d and they didn't find a baby . 
They said it may be too early bUt they wanna  be sure . they didn't see anything in my tubes . 
Has this happen to anyone ?