is it a girl? sonographer is unsure.. what do you think?

Sarah
Hey ladies, today I went for my gender scan and baby wasn't lying In the best position for the lady to view. She managed to get a shot and said she was 90% sure it was a girl, but as she couldn't view baby's private parts again after viewing it once she said I'd have to come back on Thursday ( 4 days time) to see whether baby is in better position. Do you think it's a girl or could there still be a possibility for a boy still? 
Thanks