Publishedduration1 hour agoimage captionAshley's three children

Ashley Strong has three children conceived through IVF. She knows she doesn't want any more, but she is still paying each year for three embryos to be frozen in storage at an IVF clinic.

"I keep paying to not make the decision," she told 5 Live's Emma Barnett.

Every year the clinic writes to her asking what she wants to do, but she still can't bear to let them go.

"The letter comes on an annual basis," Ashley says.

"I fight quite hard not to open it or look at it for as long as possible to try and give myself some time to think about it.

"They've been in storage now for eight years and I'm still no closer to reaching a decision."

Some people who are having fertility treatment have leftover embryos after their IVF cycle.

Instead of discarding them, there is the option to freeze them to use in the future, in case the treatment doesn't work or to try for a sibling at a later date.

Under the current guidelines, people can have their embryos stored for up to 10 years. After that time, they have to decide what happens to them – either use them, donate them or, as the terminology describes it, "leave them to perish".

According to the Human Fertilisation and Embryology Authority (HFEA), storage costs can range from around £125 to £350 a year.