A MORBIDLY obese mum-to-be has given up on her dream of becoming the world's fattest woman to trim down for the sake of her unborn baby.

At 50 stone, Monica Riley was well on her way towards her dream of becoming so fat that she couldn't move.

12 Monica used to be fed through a funnel by boyfriend Sid on her quest to become the world's fattest woman Credit: Barcroft Media

12 Monica had previously dreamed of becoming immobile - aiming to reach her 70st goal weight Credit: Barcroft Media

With the help of her feeder fiance, Sid, 28-year-old Monica, who modelled on sites for "big, beautiful women", would scoff over 10,000 calories every day, often using a funnel to help her consume the sickening volume of food.

Monica, who is 15 weeks pregnant, is now in a desperate battle to shed her substantial excess weight, and has already lost over 14 stone in just ten weeks, taking her down to 35 stone.

She has already experienced the tragedy of two miscarriages, and has now vowed to overhaul her shocking lifestyle to become fit and healthy for her baby.

12 Now that she is pregnant, Monica has decided to trim down, with help from fiance Sid Credit: Barcroft Media

12 Monica has been pregnant twice before, and wasn't planning another pregnancy Credit: Barcroft Media

Monica, from Fort Worth, Texas, said: "At one point in my life, I wanted to be the biggest woman in the world. I wanted to be bedbound and immobile and be fed ever more.

"But now that I am pregnant, it’s been a wake up call.

"I want to be able to be active with my child. I want to be able to get up and with him or her and be involved in every way. You can’t do that if you’re immobile."

12 Monica used to weigh a staggering 50 stone Credit: Barcroft Media

12 Now pregnant Monica has managed to trim down to 35 stone - although she's worried her 'feeder' fiance won't be as attracted to her Credit: Barcroft Media

Last summer, back when Monica still weighed a staggering 50 stone, she found out she was pregnant for the first time.

She and her boyfriend Sid, 26, were overjoyed, although Monica continued to indulge in her dangerous diet.

At 12 weeks, a scan revealed that the fetus was malformed, leading to Monica taking medication to pass the rest of the fetus.

12 Monica is determined to overhaul her shocking eating habits Credit: Barcroft Media

Months later, she found out that she was pregnant again, but suffered another miscarriage at 14 weeks.

Monica said: “I was depressed and crying a lot. I picked myself up and just kept going.

"I just had to put it behind me and I pretty much pretended that it never happened.”

12 Having started exercising, Monica hopes to lose weight for her baby's sake Credit: Barcroft Media

After blaming herself for the miscarriages, Monica and Sid put their family plans on hold.

But the couple hadn't been using protection, and Monica fell pregnant again in March.

12 The couple are dedicated to raising a healthy and happy child Credit: Barcroft Media

Monica said: "I do think my weight affected the previous pregnancies. There is no clear medical evidence but I think if I was healthier the babies would have been stronger.

"I accept that my eating habits were terrible.

"When I first found out I was pregnant this time I was really nervous and scared because I knew that I had to change a lot of stuff.

"I don’t want to lose any more babies and I didn’t realize how dangerous it was to be pregnant at this size before. I want to be healthy enough for the baby to keep growing."

12 Feeder Sid says he'll still love Monica, no matter her size Credit: Barcroft Media

With help and encouragement from fiance Sid, Monica has started walking every day and has overhauled her deadly diet.

She used to eat constantly every day, but has now cut down her consumption and started eating healthy salads to bring her daily calorie intake down from 10,000 to 2,000.

What Monica used to eat in a typical day - Six scones - Six sausages in a bread roll - A big bowl of sugary cereal - Two weight gain shakes - Four McChicken Sandwiches - Four double cheeseburgers - One large portion of french fries - 30 chicken nuggets - Macaroni cheese - Taco Bell - One gallon of ice cream

But Monica says it hasn't been easy to make such a radical change to her lifestyle.

She said: "The diet has been very difficult. There has been a lot of crying and a lot of mental challenges. Food for me was an addiction pretty much, just like alcohol or drugs."

And she was also concerned that her "feeder" fiance, Sid, would stop being attracted to her body if she becomes slimmer.

12 At the height of her weight, Monica worked as a fetish model Credit: Barcroft Media

But Sid says he'll love her no matter what, adding: "I am not just attracted to her body. I am attracted to her as a whole complete person.

“At this point, I don’t care if she’s even 120 pounds. I told her even if she’s tiny, I would still be in love with her. There aren’t two ways about it.”

And Monica is also planning to make one more big lifestyle change: swapping the fetish modelling for plus-size fashion modelling.

12 Monica has now started to exercise regularly and eat healthier Credit: Barcroft Media

She said: "I don’t have a goal weight in mind, it’s more about health than size. The pregnancy is progressing well and the baby has a strong heartbeat.

“We are going to encourage the baby to eat well as he or she grows up. I don’t want my child to think that being fat is wrong, I just want them to be active, healthy and happy."

Sid added: “We just want the baby to be healthy so we can finally start our life together as a family and maybe even have more kids in the future.

"I just want to give him or her the best life I can, and that’s all that matters."

Yesterday, we brought you the story of 26-year-old Jennifer Edwards who lost over six stone after writing her weight on her hand every day.