What effects the chances of having twins ?

Question

What effects the chances of having twins ?

Answer 1

oh wow some of these answers are crazy--I wish people would get their facts straight before answering on here--There are 4 factors that can increase a woman's chacnces of having twins- 1. being over 35 yrs of age, 2. Being overweight, 3. Taking fertility drugs such as Clomid and 4. Having twins in the maternal side of your family. This info has been shared with me by a very successful OBGYN/Fertility treatment specialist in Dallas.