The woman, in her 30s, suffered a miscarriage.
A man is due in court in the next hour over a serious assault on a pregnant woman in Dublin city centre last month.
The woman in her 30s suffered a miscarriage after she was attacked on Dame Street in the early hours of Sunday April 25th.
On Tuesday, Gardai arrested a man in his 30s in connection with the violent assault.
He has since been charged and is due to appear in court this morning.