I haven't had an ultrasound since I was 6 weeks, (I'm currently 11 weeks 6 days ) and my doctor said I won't have another sonogram until I'm at least 18 weeks. I feel like 12 weeks between sonos is too long. Especially with twins. I saw my first born more often and he wasn't high risk. My dr says he knows what he's doing and they will be fine but should he check more often than 12 weeks apart? I cant afford to pay another dr to do one electively plus my current dr. Has anyone else had to wait this long ?