(CNN) After a week of speculation, Hilaria Baldwin says she suffered a miscarriage in her first trimester.

"There was no heartbeat today at my scan...so it's over..," she said on Instagram

Last week, Baldwin, a fitness guru and the wife of Alec Baldwin, shared her personal story about how she was "most likely experiencing a miscarriage."

"I have no shame or embarrassment with this experience," Baldwin wrote in an Instagram post. "I want to be a part of the effort to normalize miscarriage and remove the stigma from it. There is so much secrecy during the first trimester."

Baldwin said she wanted to share what she's going through because it's what she's told her followers she would do: be real and honest.