She has not yet been tested.
Miss Symonds said she had spent the past week in bed with symptoms of COVID-19.
But she added that after seven days of rest, she feels “stronger” and is “on the mend”.
The Prime Minister’s pregnant fiance wrote on Twitter: “I’ve spent the past week in bed with the main symptoms of Coronavirus.
“I haven’t needed to be tested and, after seven days of rest, I feel stronger and I’m on the mend.”
She also tweeted a link to advice published by the Royal College of Obstetricians and Gynaecologists.
This provides information for pregnant woman on coronavirus.
Miss Symonds accompanies this with the tweet: “Being pregnant with Covid-19 is obviously worrying.
“To other pregnant women, please do read and follow the most up to date guidance which I found to be v reassuring.”
The Prime Minister is currently recovering after testing positive for COVID-19 last week and had been due to leave self-isolation on Friday.
But in a tweeted video message, Mr Johnson said he is remaining in self-isolation with mild symptoms including a raised temperature.
This is a breaking story. More to follow.
Published at Sat, 04 Apr 2020 16:32:00 +0000