
Lisa Marie Presley worried she couldn't have any more children because she kept miscarrying.
The singer, who's married to Michael Lockwood, fell pregnant with twin girls Finley and Harper in October after two years of trying.
'I really wanted these babies,' Lisa tells People. 'My blood was too thick and would clot, which caused several miscarriages.
'The moment I took blood thinners, I got pregnant.'
Lisa, 40, is also mum to daughter Danielle Riley, 19, and son Benjamin Storm, 15, from her relationship with musician Danny Keough.
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