Beata Bienias, 36, had begun to give up hope of ever becoming a mother due to issues with her health including polycystic ovaries, brought on by weighing over 17 stone.
But she lost weight and the new mum got more than she ever dreamed of when she finally fell pregnant with one baby through IVF.
But miraculously she had also conceived twins just days before her embryo transfer.
Baby Amelia and twins Matylda and Borys were born by Caesarian section at the Royal United Hospital on December 13, when the pregnancy had reached 34 weeks (eight and a half months).
Her pregnancy has been described by one fertility expert as ‘almost impossible’.
It means Beata and her husband Pawel, 40, are now parents to four-week-old Amelia and twins Matylda and Borys.
The mum-to-be was told by stunned doctors that a pair of non-identical twins had been conceived naturally just a few days before her IVF embryo transfer.
And the shocked parents were initially unaware that Beata had already been pregnant at the time she discovered her IVF treatment had been successful.
Fertility expert Emma Cannon, who has worked in the field for 25 years and founded the Emma Cannon Clinic in Chelsea, London, was stunned to hear of Beata’s triplets.
Beata said: ‘My motivation was really high. I wanted to be pregnant. Losing the weight made me really happy. I was really proud of my weight going down and down each week. It was brilliant.’
By February , Beata was given the thumbs-up by her GP and weight loss consultant to begin having blood tests for IVF. She began having the injections in April, and the embryo transfer took place on May 2.
But the rules around what Beata could and could not do during this time were tight – including not having sex for the four days leading up to her embryo transfer.
She continued: ‘They tell you to wait for 14 days before taking a pregnancy test, but I couldn’t wait, and I did one after nine days.
‘When I saw those two lines, I went out and did about five or six more tests, just to make sure. It was just amazing.’
With what she thought was just one baby growing in her womb, Beata and Pawel then went on holiday for two weeks to celebrate.
And when they returned, the couple went for their first scan at the fertility clinic in Bath.
Beata recalled: ‘When I sat down the sonographer told me not to be nervous if they couldn’t see anything the first time.
And when they returned, the couple went for their first scan at the fertility clinic in Bath.
‘We were told the two twins were conceived naturally. I couldn’t believe it – after so many years of trying and getting nothing, and then having IVF and conceiving naturally.’
‘I was really worried in the beginning, when I heard I was having triplets. But nothing was an issue. I really enjoyed it.
‘Everyone who looked after me was amazing – I had great care from staff at Royal United Hospital in Bath.’ She said. Amelia was born weighing 5lbs 2oz, Matylda weighed 4lb 5oz, and little Borys weighed just 4lbs.
But Beata said all three babies are doing well and are ‘growing too fast’.
Besotted Beata said: ‘I am enjoying everything – even when they wee in bed and I have to clean it up.
‘I feed them nearly every three hours, and I go for walks with them every day. My husband is absolutely proud of his three babies, and cuddles them every day when he gets home from work.
‘I had no idea what to expect from being a mum-of-three all of a sudden. But I’m so happy,’ she added.