Alhamdulillah, 3.4kg is a good weight for normal delivery, a few of us in my circle have pushed out babies 3.5kg and above naturally, so don't worry lah, it's very doable! The main thing is listen to your body during labour and trust your doctor's guidance, dia akan monitor if there's any issue. My friend had 3.6kg baby dan lahir normal je, recovery pun smooth, so you've got this mama!