Idk what to think of all thiss ... 😭

Kid of long im sorry i just need some opinions. (Idk if I posted on the right group)

Last month August i had my period for about 16 days on a off spotting first that turned into heavier bleeding i called my doctor she seen me and told me everything was ok and i shouldn't worry that some women have longer periods sometimes I was like ok didn't make anything of it since she checked me.

Everything was ok after that till i started spotting again at the end of August that kept on till this month literally a month i called my ob again and explained all my symptoms and how this wasn't normal! They made an appointment for this monday that just passed and by my surprise the pregnancy test they did came back positive something I DIDNT know so now i begin to worry and start crying the doctor tells that im having another miscarriage i had a previous one already in 2015 he tells me how he has to do a d&c right then in there im just laying there crying while he's doing it. Its the most horrible thing a person has to endure!! I feel like a total failure because I didn't know i was pregnant. Im still having some heavy bleeding and passing clots. This pain is so horrible. 😭😭

Now here are my questions. I feel like the doctor needed to do an ultrasound before the doing the d&c to even confirm the miscarriage or have done one after to make sure my uterus is clean. Maybe is me or maybe one of you ladies can relate I feel like I need to see for myself that there isn't a heartbeat that there isn't a baby anymore. Something in my heart tells me that im still pregnant I know that after such procedure its almost impossible but I really want to believe that theres hope. 😭😭