May 06, 2016 03:40 PM

Marissa Hermer‘s little lady is here.

The Ladies of London star welcomed her third child, a daughter, on Thursday, April 21, she confirms to PEOPLE.

Hermer’s baby girl, whose name is being kept under wraps for now, was born in London — on Queen Elizabeth‘s birthday! — at Chelsea Westminster Hospital.

The new mom of three and husband Matt Hermer are already parents to sons Max and Jake.

Courtesy Marissa Hermer

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Despite a difficult pregnancy — Hermer was diagnosed with both placenta previa and placenta accreta — the reality star was thrilled to announce her pregnancy in December.

“Without going into too much detail, we’ve been unlucky a few times and in the early stages of this pregnancy. It looks like it was going in the same direction … but now all clear and looks good,” she said.

In March, the mom-to-be got a little help from her sons to announce the sex of the baby on the way.

“Matt and I were totally shocked when the doctor told us we were having a girl — I just assumed we would have another boy so was planning out little Hermer football team,” she told PEOPLE.

“Now every time we go back for a scan, we ask if she can please check again as we still can’t really believe it.”

— Anya Leon with reporting by Sarah Michaud

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