Join Date: Mar 2002
Location: Northampton, MA
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In general, moms of twins definitely have more morning sickness than moms of singletons. I am 32 wks pg with twins, and I first felt nauseous literally 3 days after conception (everyone thought I was making it up). Many moms of twins lose weight in the first trimester due to being so sick. Of course, there have been plenty of moms of singletons with terrible m/s too! I do know that the degree of m/s can vary between pregnancies regardless of how many babies you are carrying.
As for the genetic factors, it depends on what type of twin you are (fraternal or identical). Fraternal twin women are 5 times more likely to have twins than non-twins. Identical twins are supposedly not genetic, it's just a fluke thing that happens, and thus your chances wouldn't be increased. The fact that your husband is a twin, while being very cool in my opinion, does not affect your chances of having twins. This is because fraternal twins happen when two eggs are released from your ovary (or one from each ovary), and the fact that your husband is a twin would not cause your body to ovulate two eggs. So, basically, as far as having twins in your family, if there are fraternal twins on your mother's side of the family, your chances are increased for having twins.
The only for sure way for you to find out if you are having twins is to have an ultrasound.
p.s. I also think it's extremely cool that your twin married your husband's twin! What fun family get-togethers you must have!
Mindfully mothering SIX kids (ages 6, 7, 8, 10, 12 & 12) in a small house with a lot of love.