Salam sis! Ini tula procedure yang kena discuss dulu dengan doctor, especially masa pregnant, tidak boleh ambil risiko, kan? Please call your OB/GYN atau gastroenterologist first, jangan buat kat private clinic without proper clearance, okay. I don't personally know anyone who went through this during pregnancy, so honestly I'd rather dengar dari medical team jugak apa timing yang paling selamat for you and baby. They might suggest delay until after delivery depending on situation. Jangan tunggu lama, check with your doctor asap lah. Take care!