Can I jump on a trampoline while in my TTW?

Dr
If I dont get my BFP this month then next month I will be one week past ovulation (so possibly very early pregnant) and we are taking my little girl to a trampoline jumping place for her birthday, It's going to look very fishy to my mother in law and aunt if I don't jump and my daughter will be wanting me to jump with her. Would it be safe for me to lightly jump around? 
I'm concerned about the safety of it and yet at the same time I'd really hate to disappoint my daughter on her birthday. Plus it would be so early in not sure any harm could come from it but I'm not sure. 😔