Hannah's mother Michelle Browne is calling for all pregnant women to have a scan for Peripartum cardiomyopathy - the rare heart condition which killed her daughter.
She said: "if I can save one person out of all of this, it would mean so much, because then they wouldn't have to go through the heartache that we have had to go through as a family."
She said all is needed is "a simple scan - that would cost about £40-£60 - that would pick it up."
More top news
Snacks, takeaways and even alcohol continue to fuel an obesity crisis among pets in Wales, according to a leading veterinary charity.
Wales could soon become the first part of Europe with a legal duty to have sufficient nurse staffing levels on hospital wards.
A fascination with birds of prey has been a life changer for a GP from Hampshire who moved to be closer to ospreys at a Welsh reserve.