Eh ada lah, a few of us experienced sama macam ni masa early scan, memang sometimes the uterine lining nampak thicker especially kalau timing of the scan is at a certain point dalam cycle ke or kalau ada slight inflammation. Tapi 4 weeks is very early pa, so it's hard to see banyak details pun, yang penting is kena follow up dengan doctor kat 8-10 weeks untuk confirm everything is progressing well dan dapat clear heartbeat. Jangan worry sangat lah, most of the time it's nothing, tapi definitely ask your gynae about this at the next visit okay?