Massage during 1st Trimester

I am going on vacation next Saturday (12/21) and was given a gift of a massage and facial appointment on 12/27 while I'm away. According to glow I am due to get af on the 23rd. My concern is what to do if come the 27th I haven't gotten a BFP but af hasn't shown up? I've read that massages aren't safe during early pregnancy so I don't want to risk it incase I am pregnant and it's just too early to show on a test but I also don't want to cancel if I'm not in fact pregnant since I can't reschedule and it was a gift... Any advice or suggestions?