Hey mama! Honestly, maraming moms na kilala ko na nag-wax pa during pregnancy kaya okay lang naman, pero since you're 7 months na, better check with your OB muna, basta alam nila na pregnant ka at inform them ng plano mo, they usually give the go-ahead or mag-suggest ng safer alternatives like trimming nalang o depilatory creams na pregnancy-safe. Good luck, and don't stress too much about it!