I believe that its not 50-50 chance of boy or girl; I think that some men have more of one gender sperm than the other hence why some of us only ever have one gender. Two of my 3 boys should be girls. My husband fits the profile of a 'girl' man; he is fit and healthy and wears jocks not boxers.

I was gung ho about gender swaying if we have another but TBH I think I would be more disappointed if it didnt work than if we just got another boy on nature's decision.

That said nothing lost in trying.