i have had two miscarriages and both resolved themselves without me doing anything. my first one i was only at 6w4d, so i wasn't that far along. my body just started bleeding and i only had a heavy period.
my other miscarriage though was a whole other story. i was 13w along and thought everything was going well. i went to my midwife and we tried finding the heartbeat on the doppler and couldn't find it. so i went for an ultrasound and all we saw was a huge empty sac; it was a blighted ovum. essentially, the embryo probably died very early on but my body kept thinking i was pregnant, so i had a placenta, and a huge sac of amniotic fluid, but no baby. usually blighted ovums miscarry in the first few weeks, my situation was not very common. i was devastated when i found out, but i didn't do anything. 3 days later i started to bleed lightly, and then a day later actually miscarried. i went through a mini-labor, had a big gush when my water broke, and eventually passed the placenta. it was very difficult physically, very painful, probably similar to how i imagine labor. but all in all it was over fairly quickly, and then i just bled like a regular period for several days afterwards.
the reason i am telling you that story is that if i had found out weeks before that i had a blighted ovum, a doctor would have almost certainly tried to convince me to either take drugs or do a D&C to ensure that i miscarried. i am thankful in a way that i didn't find out earlier, because i know if would have been hard to trust my body and not give in to the pressure. ultimately, i would have waited a few weeks and everything would have resolved itself naturally. i know that mentally and emotionally something like that is not easy to go through, just waiting to miscarry. but i felt it important to share my experience for those who might be reading this and have something similar occur and have a pushy doctor telling them that drugs or surgery are absolutely necessary. Read more about Medical Abortion