Hi im new to this forum and really seeking some advice. Im a 25 year old mum to 2 boys and have previously had 1 miscarriage. I currently have the implant in my arm and my last period was 3 weeks ago. Over the past few days i have been experiencing extreme cramping and a huge amount of gas (sorry tmi) i have been passing black blood which has now returned to red and what appeared to be 2 golf ball sized clots. Could this be a possible miscarriage? i appreciate any help or advice possible.