First time having sex since MMC

First time me having sex since our MMC last month.. Yesterday I finished  my first af since than... But having sex this morning brought quite a bit of bleeding.  Has this happened to any of you?  The blood seemed like when you cut yourself bleeding and not menstral blood.  Kind of freaked me out.  I don't want any more issues sec wise.  No more miscarriages, no more missed miscarriages. No more bleeding when you're not supposed to be bleeding :(  
I just want a normal, happy, healthy sex life and eventually a successful pregnancy.