Thanks for writing in.
It is found from study that many women experience loose stools just before diarrhea
. But it has to accompanied by pain over abdomen starting from loin to groin, increasing in both frequency and intensity.
The time between labour pains and delivery is short if it is second time.
So if you are experiencing more clear fluid going per vagina along with labour pains as described above; you need to see doctor.
I hope this information helps you.