Sayang, sesak nafas masa hamil memang common, tapi kalau ada sakit dada jugak, better you go see your doctor or go to hospital sekarang juga, jangan tunda! Chest pain + shortness of breath kena check properly, OK? A few of us had similar experience, mostly normal expansion of rib cage and uterus pressing, but ONLY your doctor boleh confirm. Please don't worry-worry, just get it checked out today, better safe than sorry!