Hello girls, I want to know from whom it was like that. I'm pregnant f…

Hello girls, I want to know from whom it was like that. I'm pregnant for 4 or 5 weeks, yesterday I went to the toilet and there was a little blood, yesterday it flowed very much, worse than menstruation, yesterday I left for an ambulance, the doctor looked and said threat, on ultrasound nothing is clear because they said the term is small, prescribed Dufostan, said it will pass one or two days, but today again it flows a lot of blood and nothing hurts in my stomach or waist, what should I think already don't know