What can this mean? Started with 6days late on period

Danielle • Im in my mid 20s, my hubby and I have 3 beautiful children. And are hoping for more.

Ok so to start off my period was 6 days late, but did end up coming :-( weirdly though it only lasted two days, heavy the first, light the second. Its now been 4 days since I ended my period and now im spotting??? Wth? Lol

What could this mean?