Ahhh I understand la, at 24 weeks memang kadang susah nak tengok betul-betul especially kalau baby position tak cooperate! The question mark symbol on scan reports usually means they're not 100% certain or uncertain pasal tu, so it's not a definite confirmation yet, kira like "likely girl tapi tak sure sure" lah. Honestly, a few of us tried going back for another scan a few weeks later bila baby dah shift position, and that's when they could confirm properly, you could ask your doc if you want a clearer picture next time. Don't stress la, you'll know for sure soon enough!