English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

fraternal twins (a boy and a girl) to be exact.

2006-08-25 04:47:08 · 5 answers · asked by Meg ♥ 1 in Pregnancy & Parenting Newborn & Baby

5 answers

Fraternal twinning (dizygotic twins) is associated with multiple ovulation and its frequency varies between races and within countries and is affected by several factors. In general, the frequency of dizygotic twins is low in Asian races, intermediate in whites and high in black races. In the U.S., the overall incidence of twins is approximately 12 per 1000 and two-thirds of these are dizygotic.

The chance of having fraternal twins goes up with increasing maternal age. Three woman in 1000, under the age of 20, will conceive fraternal twins. Between the ages of 35 and 40, 14 women in one thousand will conceive fraternal twins. Women who have had a greater number of babies (increasing parity) also have a higher risk.

It is the fraternal type of twinning that is induced by fertility drugs. Although the rates differ by type of treatment, twinning can occur in over 20 percent of the conceptions when some fertility drugs are used to induce ovulation.

2006-08-25 04:52:03 · answer #1 · answered by tigergirl301 6 · 0 0

well.. there is really no way to tell.. I had fraternal twins, but they are both boys.. it is like two pregnancies at once. So it is the luck of the draw. just be happy if they are both healthy! or just one healthy.., twins are not easy.. so be careful what you wish for.

2006-08-25 07:19:21 · answer #2 · answered by Tiffany P 3 · 0 0

It depnds - if you are taking any fertility drugs, that will significantly increase your chances of a multiple birth.

Family history also plays into that, but that MAY be more the case for identical twins.

2006-08-25 04:54:00 · answer #3 · answered by cmc1217 2 · 0 0

Not very good unless twins run in your family (on your mom's side).

2006-08-25 04:50:09 · answer #4 · answered by BeeFree 5 · 0 0

Not sure of the odds, runs on the maternal side.

2006-08-25 04:51:33 · answer #5 · answered by shortansassy 4 · 0 0

fedest.com, questions and answers