Symptoms of having a baby boy?

I believe it differs for everyone. Here majority say they had bad nausea and major morning sickness, acne problems and all. I'm week 21 now and I was told I'm having a baby boy during last scan. But I do not have any of the above stated symptoms. No morning sickness, no nausea, no vomiting, no tiredness (except for the first 4-5 weeks), no acne so far *touchwood*. My belly is bigger so my MIL guessed it could be boy.