Thank you for your query.
I think you are suffering from mild gastro enteritis
Mild infection of the gastrointestinal system.
It could be bacterial, viral or chemical, due to preservatives in food.
As you are only 6 weeks pregnant, it is advisable to avoid antibiotics for the time being.
You can take Sporolac plus tablets or Sporolac Qik sachets once daily.
Please avoid eating outside.
Take liquids mostly, increase your intake of probiotics in food ( yoghurt, curd etc ) and avoid dehydration
You can gradually start semi solids as the pains ease up.
If the condition doesnt improve in a day or two, consult your doctor and consider antibiotic therapy.