twins

There are three different kind of twins: Dizygotic, Monzozygotic, Polar Body Twins. All dizygotic are dichorionic, and 2/3 of monozygotic are monochorionic.

High risk pregnancies will often require additional testing and routine checkups. Depending on whether the pregnancy is a twin or triplet pregnancy, bed rest may be ordered as early as the first trimester. 

For many women, having twins is either a prayer answered or the scariest thing on earth. As is the case with all pregnancies, being pregnant with twins can be easy or hard. It is often the unanswered questions that are hardest for women pregnant with twins.

The health risks for twins and triplets are greatly increased compared with those for singletons mostly because multiples tend to be born prematurely and underweight.

Twins account for about 1% of all spontaneous pregnancies, but up to 35% of IVF pregnancies are twins. 

Superfetation happens when twins are conceived weeks apart from two separate ovulations and from two different fathers or the same father, the second one after the first has already implanted. Superfecundation are twins with different fathers but ovulations the same day.

Ovulation twice or three times can lead to twins or triplets, as well as can a fertilized egg that splits into two or three.

Pregnancy complications in twins are many-fold higher than with a sigleton baby and include a higher rate of premature deliveries and fetal anomalies.

The odds of twins depends on your age and whether they are identical twins or not and which ethnicity you have or whether you took fertility medications.

The rate of multiple births was significantly lower with metformin. Because multiple gestation is associated with higher complication rates and medical costs, our data offer an additional reason for use of metformin to induce ovulation for OI in PCOS patients.

Coinjoined twins are identical (monozygous) twins where the same egg that was fertilized by one sperm and it then separates more than 13 days after fertilization. When this happens the two twins are joined in some parts of their bodies.

Fun Facts about gemellology (the study of twins and multiples).

What are the chances of getting pregnant with multiples when getting Repronex to induce ovulation?

Twins with two fathers are possible with supoerfecundation and superfetation.
Superfecundation and Superfetation and two rare events. Superfecundation is when there are twins from ovulation on the same day with two separate fathers and superfetation happens if there is a second pregnancy from two separate ovulations weeks or months after the first.

My husband and I are both twins. I am an identical twin, and he is a fraternal twin. What are our chances of having twins of our own?