Dear madam,I understand your concern. In my opinion the loose motions,vomitings and pain abdomen suggests gastroenteritis(GE).You might need to consult a doctor as you might need a course of antibiotics. You need supportive treatment like taking adequate fluids upto 3 litres,coconut water, Butter milk,fruit juices to combat dehydration due to vomitings and loose motions. Dont worry its a simple gastrointestinal infection and it subsides with apt treatment. Avoid spicy diet.Outside food(not prepared at home),undercooked meat and stored food might be the cause sometimes. Relax dont worry about the miscarriage. Miscarriage presents with pain abdomen ,backache and mainly spotting. Regards .....Dr.srilatha