This post discusses pregnancy loss and may be triggering for some readers.
Posting to Instagram on Thursday, the 33-year-old shared that she was feeling 'overwhelming sadness' after learning that her baby no longer had a heartbeat.
"Yesterday morning I was laughing with a friend saying, 'Seriously though, how am I going to get through my gig in LA tomorrow night without telling the whole audience I am pregnant,'" the singer wrote.
Watch: A tribute to the babies we've lost. Post continues after video.
"By yesterday afternoon I was dreading the thought of getting through the gig without breaking down. After going for my third scan and being told there was no longer a heartbeat.
"This morning, I feel like I have no control of my emotions. I may regret posting this. I may not. I actually don’t know."
The singer added that she still wanted to perform at her gig that evening, despite her heartbreak.
"What I do know is that I want to sing tonight. Not because I'm avoiding the grief or the process, but because I know singing tonight will help me. I have done two shows in two years and my soul needs it. Even more today.
"I know some people will be thinking she should just cancel it. But in this moment I have clarity on one thing. I started singing when I was young for joy, to fill my soul, and that hasn’t ever changed and I have to process this my way.
"I want to be honest and true and not hide what I’m feeling. I deserve that. I want to be as myself as I can be in this moment. Not just for the audience but for myself and my little baby that did its best.