The most emotionally powerful journey sees a new group of hopefuls determined to start their families through IVF.

The most emotionally powerful journey sees a new group of hopefuls determined to start their families through IVF.

For single mum Sarah, will the one round of treatment she can afford be enough? Christie and Perrie are desperate to find an underlying cause of their infertility, while Rachel and Heather confront their PTSD in the final stages of Rachel's pregnancy.

Will donor eggs produce a miracle pregnancy for 46 year old Sheila, or is this the end of her and Tyson's dream to have a baby? Emily and John's baby arrives, but things take a terrifying turn. Rachel and Heather give their families the most beautiful gift.

For Sheila and Tyson - in their late forties - time is running out. Donor eggs give them one last shot at a baby. Rachel and Heather are haunted by a tragic loss, but no less determined to start their family. Will it be a miracle result for Maddie and Nathan, or the end of the road?

A new group of hopefuls start their families with IVF. A list of issues gives Emily & John a tiny chance of success, while it's a mystery why Maddie & Nathan can't fall pregnant.