I don't know how far I was

I miscarried about a month and a half ago. I didn't know I was pregnant until I did! I don't know how far along I was and I legally can't go to the doctor without my mother being there 
is there any way to find out how far along I was? 
I bled heavily for 3 or 4 days, I had terrible cramps that made me cry, and I had a clot about the size of about a quarter. there were some little clots too but that was the biggest
can I find out how far I was 😥😥😭😭😭