Is my period just messed up.. someone please!!

KAty

Ok I have my lo on the 5th of December 2017..

had my first period on the 28th of February was very heavy..

then not so heavy one and only lasted 2 days 13-15th March..

Now I have been feeling cramps etc, bleeding but not enough for pad..

took a test negative..

Is my period just messed up from giving birth help.