I ask because me and hubby have only had 4 daughters and most people with 4 children have had a mixture! I am pregnant again and just wondered if anyone thinks I have any chance of a boy! I know its not me that makes us only have daughters because when i was 17 I had a son but with a different father! Thanks all.
2007-01-01 22:29:17 · 20 answers · asked by Anonymous in Pregnancy & Parenting ➔ Pregnancy
daixyflex is right! I just did a-level genetics and got an a. this type of thing was on the test! to work out the probability you have to do a test cross. heres one for your problem.
x x x y (xx-female xy-male)
|| || | |
||_|__||_| ||_|__||_|
x x, x y x x, x y
your children could be : xx, xy, xx, xy as they get one chromosome (x and y are sex chromosomes) from you and one from your husband.
the chances of you having a boy : 50/50 1:2
hope that didnt confuse you to much!
the thing about girls swimming faster etc is wrong. its all down to chance Im afraid. good luck trying for a boy tho! Im the eldest of 10 with 7 girls and 3 boys all with the same parents! I think that proves that its just chance. (it went girl, boy,girl,girl,girl, boy,boy,girl girl girl)
sorry that tthe test cross looks odd, there is supposed to be a space between the middle sets of xy and xx
2007-01-02 01:40:17 · answer #1 · answered by shining star 2 · 0⤊ 1⤋
It is a lottery and the one topic the scientists are still debating. My hubby's dad is one of 5 boys. He then went on to have 4 boys. Of those 4 boys, 3 have had kids of their own: the first one had 3 boys, the other one 3 boys and the 3rd one a boy and a GIRL! The one and only girl. We intend to have another baby, and I accept that the possibility of a girl is mimimal, but there is always an exception, as is with my hubby's brother (he's passed away unfortunately). Keep your hopes up, it can happen, although the % is not quite in your favour. It also depends on the acidity of the lady's 'bits' apparently. The 'environment' has to be right or one of the sperm types does not survive - don't know which one, but there is a lot to read on the internet about this for those that want to conceive a baby of a specific gender.
2007-01-02 07:13:42 · answer #2 · answered by ribena 4 · 0⤊ 1⤋
Females are born with their eggs from the start, were men reproduce their sperm. The man delivers the genetics that determines the sex of the child. Normally it is the other way around however were they will only have males. If you only had boys I would say it is a sure bet that you will have another boy. In this case I would say there is a chance of having a boy, but the odds lean more towards a girl.
2007-01-02 06:40:58 · answer #3 · answered by El P 3 · 0⤊ 1⤋
I was wondering the opposite for sometime. My husband has 3 boys to a previous relationship. Our first child together was boy number 4 for him. When we fell pregnant again earlier this year, going for our 18week ultrasound to find out the sex of our next unborn child and expecting the same old, we were surprised when he mentioned a she.
I have heard that men in truckdriving occupations or that sit down a lot in their work can cause lower male sperm production so who knows really.
2007-01-02 07:46:19 · answer #4 · answered by Anonymous · 0⤊ 0⤋
What you need is a basic lesson in genetics. Men do not have female sperm. A female has the sex characteristic XX. A male has the sex characteristic XY. When there is fertilization, each parent gives off half of their sex gene. so you as a female will definitely provide and X. The male will also provide a character. In his case, either an X or a Y. It is possible that in this case, you did not receive a Y from your husband. So no, it is not possible for men to have only female sperm. It's only that each time your husband gives his share of genes to your child, he gives the X half of his genes and not the Y.
Hope this helps.
Check out http://www.scq.ubc.ca/?p=291. They explain it better than I do
2007-01-02 06:43:14 · answer #5 · answered by daixyflexi 3 · 1⤊ 1⤋
Chances are that your hubby has a mix, but there might be something that makes his female sperm more dominant. It could also just be a coincidence, and you do have a chance of having a boy, although probably more chance of having a girl!
2007-01-02 06:31:29 · answer #6 · answered by Ricecakes 6 · 1⤊ 1⤋
No not at all possible. The truth about sperm is simply this. Sperm that produce males swim very fast but die very quickly. Sperm that produce females swim slow but live longer, up to 3 days longer for some. So timming is key. And it is very possible that he has more "females" then "males." Genetics plays a part on his side but not yours. However, your chances of having a boy this time is good. Goodluck.
2007-01-02 06:46:59 · answer #7 · answered by JenRN 1 · 1⤊ 2⤋
Not at all. Anyway, most people dont have 4, 5 or 6 children. What does it matter as long as the baby is healthy. I had 3 girls, never even contemplated having a boy.
2007-01-02 06:34:40 · answer #8 · answered by Anonymous · 1⤊ 2⤋
i don't think so but it's not uncommon. i know someone with 5 girls (the father also has a girl from a previous marriage = 6!)
and until recently i was one of 7 girl cousins. there's only one boy and he's eight.
if you really want a boy good luck!
2007-01-02 11:01:19 · answer #9 · answered by Kirsty 3 · 0⤊ 0⤋
I've heard that the "strong swimmers" end up being girls and the "weak swimmers" turn into boys.
However, there also seems to be evidence that the egg is the one that chooses which sperm is allowed in... so it may not be "his fault" after all.
Good luck! If you end up with another daughter, you should try adopting a boy like my grandparents did after 6 girls!
2007-01-02 06:35:26 · answer #10 · answered by Eternity 2 · 0⤊ 2⤋