Eh sayang, ini serious medical thing, please go see your doctor or OB-GYN as soon as possible, okay? Jangan delay. They need to assess your baby's heart properly and explain what this means for your little one. I haven't come across this among my mum friends, so honestly I'm not the right person to advise on something like this. Your doctor will give you the real picture, whether it needs monitoring, follow-up scans, or anything else. Jangan worry sendiri, just get proper medical advice first, ya. Sending you a hug!