Sayang, some swelling at 38 weeks is normal sebab body retain water and baby dah besar, tapi kalau bengkak sangat and tak surut langsung, better check with your doctor or midwife to rule out preeclampsia atau complications lain ya, ini bukan benda nak diabaikan. A few of my mum friends had severe swelling near the end and turned out okay, but better safe than sorry lah, especially this close to delivery!