The most common term for a baby born after infertility is “miracle baby,” though “rainbow baby” is also widely used, especially when infertility involved pregnancy loss. These aren’t medical terms. They’re emotional labels that parents and online communities have adopted to honor the difficulty of the journey and the joy of its outcome.
Rainbow Baby: The Most Recognized Term
A rainbow baby is a healthy baby born after losing a pregnancy or infant to miscarriage, stillbirth, or neonatal death. The name comes from the idea of a rainbow appearing after a storm. It gained popularity through blogs and social media and has become a widely recognized symbol of hope and healing in pregnancy and loss communities.
Strictly speaking, a rainbow baby follows a pregnancy loss, not infertility alone. But many parents who struggled with infertility and also experienced miscarriages along the way use the term freely. If your path to parenthood included both infertility and loss, rainbow baby fits. If you dealt with infertility but never had a pregnancy loss, the term doesn’t quite apply in its original sense, though some parents still use it loosely.
Miracle Baby: The Broader Label
For parents whose struggle was primarily infertility rather than loss, “miracle baby” is the more fitting term. It covers a wider range of experiences: years of failed treatments, unexpected natural pregnancies after being told the odds were near zero, successful IVF after multiple rounds, or a surprise conception later in life. It’s not a scientific label. It’s an emotional one, rooted in gratitude and the feeling that a child’s arrival defied the odds.
Some parents embrace the term wholeheartedly. Others find it complicated. Calling one child a miracle can stir up grief for pregnancies that didn’t survive or treatments that failed. The joy of a successful outcome doesn’t erase the pain of what came before, and for some families the word “miracle” carries a weight that feels heavier than intended.
IVF and Fertility Treatment Nicknames
Parents who conceived through assisted reproductive technology have developed their own playful vocabulary. Some of these terms are lighthearted, some self-deprecating, and most reflect the financial and emotional reality of fertility treatment.
- Science baby: A straightforward term for any baby conceived through IVF or similar technology.
- Work of A.R.T.: A play on “assisted reproductive technology,” used with pride.
- Snowflake baby or freezer tot: Nicknames for babies born from frozen embryo transfers.
- Test-tube baby: The oldest and most widely known term for IVF babies, though many parents consider it outdated.
- Fertility baby: A simple, neutral term some parents prefer for babies conceived through any type of fertility treatment, including IUI.
Then there are the jokes about cost. Parents in fertility treatment communities affectionately call their children “down payment-sized baby,” “college fund baby,” or “million dollar baby,” nodding to the enormous expense of treatments that can run tens of thousands of dollars per cycle.
Related Terms Worth Knowing
A few other terms come up in these communities that are easy to confuse with rainbow baby.
A “sunshine baby” is a baby born before a pregnancy loss. If a family had a healthy first child, then experienced a miscarriage, that first child is the sunshine baby. It’s a lesser-known term but meaningful to parents who want language that acknowledges their whole family story.
A “pot of gold baby” is a baby born or adopted after a rainbow baby. The idea follows the metaphor: the rainbow comes after the storm, and the pot of gold comes at the end of the rainbow. These babies may not arrive directly after a loss, but pregnancy or adoption with them can still be emotionally challenging because the fear and grief from earlier experiences often linger.
Why Some Parents Skip the Labels Entirely
Not every parent wants a special name for their child. Some feel that calling a baby a “rainbow” defines the child through the lens of loss rather than letting them simply be themselves. Others worry the label places invisible expectations on a child to represent healing or redemption before they’ve even learned to walk.
As one maternal health specialist at Cleveland Clinic put it, some parents don’t want to see their living child as a rainbow or the child they lost as a storm. The metaphor, while comforting for many, doesn’t resonate with everyone. There’s no right or wrong approach. These terms exist as tools for parents who find meaning in them, not as obligations.
What matters most is that these words give families a shared language for experiences that can feel deeply isolating. Whether you call your baby a miracle, a rainbow, a science baby, or simply your child, the term you choose is yours.