Level 2 ultrasound

I’ll be having regular growth scans for the duration of my pregnancy due to single artery cord and I was wondering if they are able to do some 3D images for me? I had originally planned on having a private ultrasound done before 30 weeks for the 3D images but now I’m afraid that may be too many ultrasounds. I had my first level 2 scan done about 3 weeks ago and they didn’t offer any 3D images and I didn’t think to ask. It’s not a huge deal if I don’t get any done, I was just looking forward to it.