Hi, welcome to the forum from Louisiana. Glad you joined.
All those photos and none showing a profile where I can see legs or posture. At 5 weeks many chicks start to show development that can be used to help sex them but "many" doesn't mean "all". With many there is absolutely no doubt at 5 weeks but some can be hard.
That pea comb looks a bit big (a male thing) but to me it doesn't look redder than the other chick's comb. Boys tend to have redder combs and wattles than girls. I don't see any wattles. Many (but not all) boys tend to start showing wattles by 5 weeks.
Chickens can make many different sounds with different meanings. They are not all crows and girls can crow. But a cockerel is more likely to crow, even at that age. It's usually really squeaky.
The jury is still out so I would not do anything dramatic yet, but I'm also leaning cockerel.