I've seen a lot of posts on here saying sneak peek was wrong majority of the time and then a lot of people had a hard time getting their money back for it. I personally wouldn't risk it because I've seen it's pretty pricey and I'd be mad as hell to lose that much money lol
Sneak peak was right for all my kids and my friends kids and did it at different weeks . If you want to know before 20 week ultrasound or paying for the nipt - I thought it was worth doing
Sneak peek would probably be the best if you want it done now. Otherwise you can try and book an elective ultrasound at a Botique around 14-15w since most OB offices do it at 20w. They would still give you plenty of time to prepare.