Alah, jangan risau sangat! At 9 weeks, perut keras tegang tu memang boleh jadi normal, it's usually just your uterus stretching and adapting to the baby, especially since hormones are doing their thing. Most mums I know experience this and it passes, tapi kalau the tightness comes with heavy cramping, bleeding, or happens very frequently in a pattern, that's when you should let your doctor know straightaway, okay? Better safe than sorry, check in with your OB/GYN just so you have peace of mind and they can confirm everything is progressing well. Sending you calm vibes!