Early BFP's and Gender

[Rosie85]

Mine were all 10 DPO or earlier, first two were boys, no clue on gender for this bean.

[wilma_five]

5 boys's - bfp's around 8 dpo

[Jewelbare]

I have heard this too......which is why I thought DS2 was going to be a girl. I got my BFP with him at 10dpo. With my first son- I didn't get a BFP till 17dpo.

I'm so glad you had heard of this also!! I was starting to think maybe I just made it up, because I can't for the life of me remember where I originally saw the information. Thanks for making me feel better.

[Inky]

positive pregnancy tests depend on when you implanted, so it's impossible to tell based on that. However, IF girls cause more HCG it may be something that you can see based on the blood test numbers a few days after implantation?

[Inky]

Here is a study done on it, based on HCG at 10-13 weeks:
hCG levels and gender of the fetus | BabyMed.com

I think it's also the reason they speculate that morning sickness is commonly worse with girl pregnancies.