Does Period Color Change And Cramping Indicate Regrowth Of Lining?

Hey I am a 28 yr old female who had a tubal and a novasura done in 2008. When i first had the novasure done my period left. Since tha past few year my period has went from pinkish to red i began to cramp more do this mean my lining is growing back. I do want to have another child. What are my chances. If any..