Anatomy scan fear

Mhairi • Mum of 2 👩‍👧‍👦 🏴󠁧󠁢󠁳󠁣󠁴󠁿 UK mum

So I have my 20wk scan next month. It’s on the same day I have an exam for uni. Im terrified I get bad news and it ruins my focus for the exam. I know it’s supposed to be a happy day and I get to possibly find out the gender but I’m scared. Im 16wks with #2 and haven’t felt much yet. I could rearrange the scan but it wouldn’t help me. Any advice?