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The model and social media star, 35, has always been candid about her own difficult journey to parenthood, and has documented her IVF journey to conceive her two children - Luna, four, and two-year-old Miles.
After being told by doctors she will never be pregnant again after the tragic death of her son Jack, who had been conceived naturally, Chrissy is now pushing for fertility treatments to be made more widely available for women who may also find themselves struggling to conceive.
"I'm so lucky for [IVF]," she told People magazine. "I just think of it in terms of how blessed I am already, and also there are so many ways to have a child nowadays ... whether it's surrogacy or adoption.
"I can't imagine life without more children. For me what's really important is being able to make sure that everybody has access to those ways and making sure that people are able to make their dreams come true."
IVF is difficult to access in America. While all 50 states offer the procedure, only 17 states offer IVF under health insurance. A recent study by FertilityIQ found about 80 per cent of Americans who access treatment receive little or no coverage for IVF costs.
According to the American Society of Reproductive Medicine (ASRM) the average price of an IVF cycle in the U.S. is $12,400 (£8,960) - but the true cost of treatment is thought to be closer to the $50,000 (£36,124) to cater for all additional costs including medication.
IVF in the UK is offered for free under the NHS, but there are caveats to this. Women under the age of 40 should be offered three free cycles of IVF treatment on the NHS if they have been having unprotected sex for two years and have never fallen pregnant, or have had 12 unsuccessful cycles of artificial insemination.
Women between 40-42 can be offered one cycle on the NHS under the same guidelines, but they must have never had IVF treatments before, they show no evidence of a low egg count, and are aware that IVF and pregnancy may have additional complications at this age.
Some couples opt to have IVF privately, with cycles costing around £5,000.
Chrissy shared photos of her heartbreaking loss of her baby Jack last year, who tragically died after she was forced to go into labour early.
While the star, who is married to John Legend, found it difficult to hear she will never be pregnant again, Chrissy has now recalibrated her thought process around the news.
"Coming to terms with not being able to carry again is still really difficult for me because I feel so healthy," she said. "I'm like, why? But then I think about it as my uterus is just not cooperating with me - and it's not a failure."
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