Many people assume IVF automatically means a higher chance of twins — and while it can increase your odds, it’s not guaranteed. Here’s what you need to know:
Why IVF May Lead to Twins
During IVF, more than one embryo can be transferred to improve the chances of pregnancy. If two embryos implant, this can result in fraternal twins. In rare cases, even a single embryo can split, leading to identical twins.
What Affects the Chances?
-
Number of embryos transferred – more embryos = higher twin risk
-
Your age – younger women are more likely to carry twins if multiple embryos implant
-
Embryo quality – high-quality embryos are more likely to implant successfully
-
Fertility medications – can sometimes stimulate the release of multiple eggs
Can You Choose to Have Twins?
While requesting more embryos may boost twin chances, most fertility clinics recommend Single Embryo Transfer (SET) to lower risks. Twin pregnancies come with increased chances of preterm birth, low birth weight, and delivery complications.
The Bottom Line
Yes, IVF can increase the chance of twins — but today’s focus is on healthy singleton pregnancies. Your fertility specialist will advise what’s safest and most effective for your body and goals.
