Aww sayang, appendix during pregnancy memang scary! Honestly, this is something yang kena discuss properly dengan doctor kau, especially since you're carrying, the scar healing and how perut expands nanti is different for each person, so doctor dapat advise based on your specific situation better. A few of my mum friends who went through emergency surgery while pregnant all say the key is follow post-op instructions closely (rest, avoid heavy lifting), gentle scar massage once it's healed, and telling your gynae about the surgery so they can monitor closely as your belly grows, most said the scar stretched but managed fine, tapi everyone's different. Don't stress too much lah, your body's quite amazing at healing, but do have that conversation with your doctor soon okay?