About 1 in 3 of all twin births are vaginal births. The birth process is similar to giving birth to a single baby. If you're planning a vaginal birth, your health team may recommend that you have an epidural for pain relief.
It is estimated that 1 in 250 natural pregnancies will naturally result in twins. While twin pregnancies can happen by chance, there are some factors that may increase your odds of having two babies at the same time.
Twins can occur either when two separate eggs become fertilized in the womb or when a single fertilized egg splits into two embryos. Having twins is more common now than it was in the past. According to the Centers for Disease Control and Prevention (CDC) , twin births have nearly doubled over the last 40 years.
Some hospitals or practitioners strongly encourage — or even require — an epidural when delivering multiples. The epidural is for a good reason: It makes things easier (and safer) should you need to have an emergency C-section to deliver one or all of your babies.
Factors that increase the chance of twins include: consuming high amounts of dairy foods, being over the age of 30, and conceiving while breastfeeding. Many fertility drugs including Clomid, Gonal-F, and Follistim also increase the odds of a twin pregnancy.
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That's not all, Monga says. Women pregnant with twins complain of more back pain, sleeping difficulties, and heartburn than those who are carrying one child. Being pregnant with twins also carries a higher rate of maternal anemia and a higher rate of postpartum hemorrhage (bleeding) after delivery.
Everyone has the same chance of having identical twins: about 1 in 250. Identical twins do not run in families. But there are some factors that make having non-identical twins more likely: non-identical twins are more common in some ethnic groups, with the highest rate among Nigerians and the lowest among Japanese.
Identical twins are almost always the same sex, although there are some rare exceptions to this rule. Because identical twins occur when a single fertilized egg splits and forms two embryos, each embryo has the same chromosomes (usually, XX for girls or XY for boys).
The quick answer to this question is that, in a twin pregnancy, it is the mother's genes that determine twins. First up, giving birth to identical twins is not genetic, but conceiving fraternal twins is. The mother may have the genetic trait of releasing two eggs in one menstrual cycle.
The notion that twins always skip a generation is also a myth. The illusion may have arisen because men who inherit the gene from their mothers are unaffected by it ( they do not ovulate), but can still pass it on to their daughters, who, in turn, will have an increased likelihood of conceiving twins.
“Having twins is not twice as hard—it's exponentially more difficult,” says Natalie Diaz, author of What To Do When You're Having Two and CEO of Twiniversity, a global support network for parents of twins.
If you're pregnant with twins, chances are that you can expect to go into labor a little bit sooner than you would if you were carrying just one baby. If you're expecting twins, here's what you need to know about the delivery and leading up to it.
Twins are usually born before the usual 40-week due date. For the mother, carrying twins can be more difficult than carrying a single baby. And her risks are higher for pregnancy problems. That's why keeping up with prenatal checks and tests is especially important.
Increased Likelihood of Twins With Medical Treatment
Fertility treatments can play a big role in increasing the likelihood of having twins. In particular, assisted reproductive technologies such as in vitro fertilization (IVF) and ovulation-stimulating medications can make a person more likely to conceive twins.
Overall, it is considered that twin delivery should be around 37 weeks for dichorionic twins and 36 weeks for monochorionic twins. With singletons, the neurodevelopmental outcomes are best with delivery at 41 weeks, but the odds of death around the time of delivery are best at weeks 38-39.
The safest, most ideal time for women to give birth to dichorionic twins in otherwise uncomplicated pregnancies is at 37 weeks, found a new study. Women carrying monochorionic twins, appear to have the best outcomes for their newborns when giving birth at 36 weeks, the same study found.
A little more than half of twin pregnancies end in preterm delivery (before 37 weeks). While 40 weeks is the full gestation period of the average pregnancy, most twin pregnancies are delivered at approximately 36 weeks (range 32-38 weeks depending on the type of twin pregnancy).
The hardest thing about having twins is...
“Managing the movement of two babies. Carrying them both up and down the stairs, getting them into the car, etc.” —Simeon R. “Often having to make one baby wait!” —Catharine D. “Being outnumbered—the logistics of two on one is definitely the hardest.
Babies who are multiples have about twice the risk of birth defects than singleton babies, including neural tube defects such as spina bifida and heart and gastrointestinal abnormalities. Cerebral palsy. Twin babies are more than four times as likely than single babies to have cerebral palsy.
If one identical twin has autism spectrum disorder (ASD), the other twin has a 76 percent chance of also being diagnosed with it. The numbers are lower for fraternal twins. The percentage of fraternal twins who each share an ASD diagnosis is 34 percent for same-sex twins and 18 percent for boy-girl pairs, Dr.
There are more twins in the "millennial generation" than any other generation, thanks partly to a twin boom in the '90s. The main reason was a new technology called in vitro fertilization, which in its early days frequently produced twins, triplets and other multiple births.
Monozygotic (identical) twins will have the same blood type, with a few very rare exceptions. Dizygotic (fraternal) twins may have the same blood type, or they may have different types. Therefore, it may be concluded that twins with differing blood types are dizygotic, or fraternal.