AF was 4 days late..

Jessica
Hi ladies! 
​So my AF was 4 days late when it finally came. It wasn't heavy and it was brownish red in color. It is gone already (only lasted 3 days). I had IB with my first born and I had clots and all with it and it only lasted 3 days but it took 4 more to get a positive test. My boobs are getting heavier and tender. Could it be?? It's been 4 years since I had my son, so, it's a bit confusing now.