Tricare prime and gender scan

Does anyone who has had or has tricare prime ever been through a gender scan? Did you pay for it yourself? We’re not getting any more ultra sounds after our confirmation and it’s literally killing me. We’re going to pay to have a 4-d scan but that won’t be until I’m around 28 weeks :,( I’m 14 weeks 6 days today and I just want to know if baby is growing well or not and I’d appreciate to know the gender so we can all bond with baby easier