sick of wondering!

soo my hubby and I are ttc #5.I'm soo scared y'all I want a boy but I don't want to get sick again. so with my sons I had really bad hyper emesis. I was admitted to the hospital more times than i can remember, I was already under weight with my first boy and then I lost another 35 lbs yall!, on every anti nausea medicine, tried EVERY midwives secret for anti nausea, tried a med that gave me really scary seizures, long story short it was terrible but there here so the out come was worth it. but with my 2 daughter's I had almost no nausea at all! maybe a head ache here or there but nothing much. so my question is... do you think gender has something to do with how sick you get?