I read your question
Apples in plenty can cure diarrhoea
.(not apple juice)
isabgol husk with less water can control diarrhoea and make the stool solid
curds in plenty can be given to stop diarrhoea.
avoid taking any medicine . the above will take 2 days time to get you alright.
You can meet a homeopath
who can prescribe chamomelia to you , which is the medicine of choice in pregnancy
patients having diarrhoea.