Miscarriage 14w2d. D&C vs. natural.

CJM • Mom of 4 (soon to be 5). 💙💙💜💙💙2015, 2015, 2017, 2020, & prego!
During a 3-D ultrasound appointment to determine the gender, they could not find a heart beat. After a trip to the ER, it was confirmed a miscarriage. 
Doctor said natural miscarriage, medicated miscarriage, or D&C were options. 
Just wonder what people have experienced and what was better? Pros and cons? Any advise would help.... This was my first pregnancy ever.