2 day period?

Le
Bear with me, I'm desperate for any advice!
I just finished my 2nd cycle (I think) off birth control and TTC. My first cycle was 53 days long. At 34 days into my 2nd cycle, I started bleeding. Not as heavy as normal, but still required a tampon. It was a bit lighter the 2nd day, and now the 3rd day---completely gone. 
I've never had a 2 day period in my life. Is that normal? Does anyone have similar experiences?