Katie Rollings, from Billingshurst, started IVF in 2010 and finished in 2017 when she concieved twins.
Ms Rollings, who went on to create charity Fertility Action, said the decrease in NHS-funded cycles was “really concerning”.
“I think you get to a stage where you have to stop trying, which is heartbreaking, and we see it regularly in our charity’s support groups and unfortunately people get to a point where they can’t do it anymore,” she said.
“Sometimes it’s emotionally, but often it’s financially, they get to a place where they just have to stop and I think it’s heartbreaking.”