![Women who undergo in vitro fertilization (IVF) should be aware that conception without fertility treatments may be possible later.](https://imagenes.elpais.com/resizer/v2/FHK5LYWQNFC3RDFGAIFH3T7IDA.jpg?auth=58305f9a855fae1b10f55e4dbe0a3963e2febfd97da4e1c7d5daa27186f98e08&width=414&height=233&smart=true)
One in five women conceive naturally after having a baby through fertility treatment
Hormonal changes and the lack of stress may explain why a woman naturally achieves a pregnancy that seemed impossible before in-vitro fertilization
Hormonal changes and the lack of stress may explain why a woman naturally achieves a pregnancy that seemed impossible before in-vitro fertilization