Pregnant Kelly Osbourne Reveals Gestational Diabetes Diagnosis in Third Trimester

Kelly Osbourne knew something wasn’t right as she entered her third trimesterof pregnancy.

After urging her doctor to take a closer look at some of her symptoms whichincluded rapid weight gain, unusual fatigue and ankle swelling, Osbourne wasmet with a diagnosis she was hoping to never receive.

“First of all, gestational diabetes is not your fault,” Osbourne tells PEOPLEexclusively ahead of celebrating the first annual National No Sugar Day onOct. 3. “At first I thought it was something that I had done. I only gotdiagnosed with it well into my third trimester, so it wasn’t like I developedit as some people get it from the get-go when they’re pregnant. I got it in mythird trimester and basically, I thought it was something that I had donewrong.”

According to the CDC, gestational diabetes occurs when a pregnant woman’s bodycan’t make enough insulin, a hormone made by your pancreas that lets bloodsugar in. While all women have some insulin resistance, gestational diabetesaffects only 2%-10% of pregnacies.

After taking a deeper look at the way she was eating, Osbourne decided to makesome changes and began cutting out sugar and watching her carbohydrate intake.

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Kelly Osbournepregnant

Kelly Osbourne pregnant

Kelly Osbourne/Instagram

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“This whole pregnancy, I’ve had no cravings except for sugar, which issomething I’ve never had before,” says the 37-year-old, who’s expecting herfirst baby with Slipknot’s Sid Wilson. “I wasn’t eating right.”

“The number one thing for me that I realized was taking me down was sugarydrinks and it was juice. Because even though I was drinking fresh pressedjuice, it still had a lot more sugar than I needed.”

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Once her new meal plan began taking its course, the mom-to-be noticed severalchanges almost instantly.

Kelly OsbournepregnantKellyOsbournepregnant

Kelly Osbourne pregnant

Kelly Osbourne/Instagram

“I’ve lost 10 pounds while pregnant,” the London native shares. “As soon as Icut the sugar out, I had a bit of a headache for a while. I’m not going tolie. It’s a bit of a shock to your system.”

“Overall, my skin cleared up. I don’t have to wear any makeup. My friends thathaven’t seen me since I started my third trimester, now that they see me,they’re like, ‘Whoa. What changed? Your skin is perfect,’ and I know thatsometimes that has to do with pregnancy, but I had pregnancy acne. I cut thesugar out and it completely went away. I think clearer.”

“I haven’t had to wear compression socks once since I cut the sugar out, whichis unreal for pregnancy,” she adds. “I just have more energy. I’m sleepingbetter. You don’t realize what it’s doing to you until you take it away is allI can say.”

As she nears the end of her pregnancy, Osbourne, who says she’s, “feelingreally good,” wants new moms everywhere to go easy on themselves if theyreceive the same diagnosis.

Kelly Osbourne gives weird glimpse at babybumpKellyOsbourne gives weird glimpse at babybump

Kelly Osbourne gives weird glimpse at baby bump

Kelly Osbourne Instagram; Gregg DeGuire/FilmMagic

“I wish I had this kind of incentive prior because I’ve never been able tostick to anything a hundred percent the way that I have been doing thisbecause I’m not doing it for myself,” Osbourne says. “I’m doing it for mybaby. But I have learned — I can’t even begin to tell you the changes thatit’s made.”

Now that Osbourne has made adjustments to her everyday lifestyle, she’s vowedto continue cutting out sugar alongside the No Sugar Company in hopes ofhelping others with the launch of the new holiday.

“We are thrilled to partner with Kelly Osbourne to help educate and cometogether to join No Sugar Company in the pledge to cut over 1 million grams ofsugar during the month of October from the 84 billion pounds that are consumedannually throughout the US,” CEO of No Sugar Company and Joyburst, BradWoodgate, says. “I’m excited that National No Sugar Day will be a recognizedday that will be celebrated Internationally.”