Thanks for the query.
There is possibility of some intestinal infection.
So you once consult gynecologist with the support of your family members.
And take antibiotics and anti-diarrheal drugs with her advice.
And if needed go for intravenous fluid infusion.
After the symptoms subside go for ultrasound
once to check the fetal status.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429