Irregular periods

So I always had regular periods. 32-37 day cycles. Out of nowhere I started having 48-50 day cycles.. literally out of nowhere! Just one month I had it and the last 3 cycles have been 48-50 day cycles so this is new to me I only had 3 periods of this. Also,, I randomly bleed for only 1 day about 2 weeks after my period ended so about cycle day 24 .. so about 26 days left before my next period. What could this mean? Anyone have this before? Do I still ovulate?