I just started my second month on the nuvaring before starting I ...

I just started my second month on the nuvaring before starting I had been off birth control for about a year the first month I put the ring in before the fifth day of my period like I was told to after the first week my period continued in fact I kept bleeding anywhere from light spotting to like a full period for the whole three weeks I had it in I thought maybe it was just my body trying to get used to the birth control I took the ring out for the seven days I was supposed to had a period for a couple days then stopped bleeding I thought maybe by body finally straightened itself out when I put my next ring in three days ago everything was fine then I started bleeding again this evening I've also experienced headaches nausea tiredness lack of appetite