Difficulties seeing right side of heart

Hi everyone! I am 21 weeks pregnant and had went for my anatomy scan last week. Baby was being difficult the whole time and I had to get up multiple times to go for a walk. I received a phone call the day after saying they couldn’t get a good read on the heart and to come back next week (today). I went for my second attempt at my anatomy scan today and the tech was having issues yet again. She said she could see the left side clearly but because of the position she couldn’t see the right. The heart rate was strong at 155 bmp. We tried to walk around, change positions and drink juice….. nothing worked. She said she would send it to the radiologist and my midwife would reach out. I’m just wondering if anyone has gone through this before and had some advice for an anxiety ridden mama. TIA 🤍