So nervous

So iv got a private scan booked in for this weekend and I'm so nervous that something is going to be wrong but also excited its our gender scan! We lost a baby very early on before this one so my anxieties have been through the roof. I look at myself and worry my bump isn't growing (17 weeks) and worried cnt feel any movement etc yet and apart from getting tired easily and aching I dnt feel pregnant. Does anyone else feel like this? I haven't had any cramping or blood etc I just felt normal.