Open Question: Ruptured varicose vein behind knee PHOTO?

I don't know if it is def a varicose vein that ruptured or not. When I was pregnant, I had a fairly large and noticeable varicose vein in the back of my left leg. From where the bruise is, it made me guess that maybe the varicose vein ruptured? About a week ago, I noticed that it was really painful behind me knee... my husband noticed that it was swollen and red... a little bruised. Now a week later... this is what it looks like... Anything to worry about or will it just go away soon? Thanks! I had my daughter 8 months ago, btw.