Theme park & pregnant

Lucy • Baby boy due jan 23rd 2019 💙💙💙

My friends want to go on a triple date to a theme park in the UK. I’m still in my first trimester and definitely don’t want to go as it could harm baby. I don’t plan on telling anyone about my pregnancy until I’ve had my scan at 12 weeks. But I absolutely love theme parks, so can’t use the excuse ‘I hate rides’

Does anyone have any thoughts on what I can say to avoid going? Xxx