Subchorionic Hematoma

I went for an ultrasound today and found out I have an sch.  It's a blood clot from implantation.  I got put on pelvic rest and told to stop taking aispirin.  From what I read these typically go away.  Baby measured right for 5 weeks.  Anyone experience this?  Here's a pic of my lil one.  The sch is not in the picture but is bigger than the sac.