not sure whats going on

Well my last post was about two weeks ago and my body is really ticking me off.... I started spotting today for no reason.... I am cramping to..... so what I dont know is is this implantation bleeding or another cycle.... I mean seriously body could you cooperate just a little..... is it too much to ask to have a normal 28 day cycle so I know when to try and get pregnant...... UGH!!! I was really weepy earlier this week and now this .....
feeling stressed