Is it true

that there is an 80% chance of conceiving the same sex next time around with only leaving a 20% chance of the other?

Just wondering, just found this rather interesting.

I think it depends on other circumstances, eg, deep sea divers tend to have girls as the boy sperm seem to die under the pressure, same with RF radio users, the frequency apparently harms the boy swimmers.

Perhaps also as it comes to timing as well, the particular couples that have 2 the same enjoy sex at the same time of month if that makes sense.

I watched a documentary about fertility and the gender game a few weeks ago and a theorist has prooved that there is no backing to support Dr Shettles theory for choosing gender according to times you have sex where in fact more than half the couples interviewed who had tried for a certain sex did everything to the T but got the opposite gender.
I do beleive (and so do the scientists apparently) that gender can be affected by things such as deep sea diving as SB mentioned.
Iv read it somewhere else on the net too (im going to try and find it).
In saying that when we first started TTC and we were hoping for a certain gender we did turn to the Dr Shettles method

I guess if there was really an absolute surefire method then it would be widely known and put out there for all...

This kinda answers the thread question...

http://www.in-gender.com/XYU/Odds/Gender_Odds.aspx

Sportsman are more likely to have girls too - not 100% why that effects the sperm, but apparently it can do.

There is a possibility that the womb or vagina can become inhospitable to one type of sperm too (thats where they get the theory about eating acidic versus alkaline for a specific gender). I read somewhere where it can be effected if a woman really, really doesn't want a specific gender, though I am not sure about the truth in that!

Going by the Shettles method, sportsmen would have more girls as they would wear supportive underwear and are more likely to get hot down there so it would kill off the 'weaker' male sperm. I think if you're really keen on a certain sex it can't hurt to try a few things but I would say unless there are medical reasons for your 'environment' favouring a certain type of sperm or hubby producing more of one type then most people would be good ol 50/50.

I can uderstand that busymum though, as there could be something that is making the girl swimmers hit the mark!

The RF radio thing didn't make sense to me, but dh has a colleague who when working with RF radios had girls, when he wasn't, it was boys (he did all sorts of testing and stuff, though not sure exactly, infact maybe it wasn't even RF Radios!)

hmmm the testosterone theory didnt work for me....

I read a NI or WD type article somewhere that said the pretty people (they mentioned courtney cox and angelina etc) were more likely to have girls...ie an attractive couple produces girls...
- im sticking to that theory and sure busy mum will take that one too huh? LOL!!!

will def tell DH about the diving theory tho...he dives a lot and now have a reason to tell him its his own silly fault its not a boy like he wanted! LOL

I know its a bit of pot luck but there must be something that determines which flavour you have, whether that is something that can be manipulated is the big question.

sportsman have girls? my DH plays alot of sports all year round and we had a boy...
i did hear the amount of times you have sex can determin what u have. heaps per month - girl, not so much boy.