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
The singer, 31, said on Twitter that she and her partner Jonathan Powell were grieving their loss.
Showers will push in to the north and west overnight with dry spells further east. It will remain mild overnight!
Chris Baker is an amazing artist, who lives with severe autism. Last night the 21 year old met his artistic inspiration, the Jacksons.