I'm all ready two cm dilated so I've lost mine 💁 and don't know how or when
Normally around 36-40 weeks I would say. Sometimes you lose it all and sometimes its chunks at a time
Some people don't even notice when they lose it
You can lose it 5 weeks before you go into labor or lose it an hour before you go into labor , there really isn't a time when you lose it , it all depends on your body
lost part of mine at 28 weeks they had to stop my contractions