I need some help!!!

I miscarried Oct 27. Bled for just over two weeks. By 2-3 days. Apparently it was suppose to be my fertile last week & had sex almost every day during my fertile window. Then I started spotting for about 4 days. Very light pinkish brown. I haven't even had a period since my mc. I'm just wondering if it's possible that it's implantation bleeding that I'm having? I've also been nauseous off and on for a couple days with sore legs and sore back off and on. And today I've been having mild cramps all day. PLEASE HELP.