When should i conversion my wad?

Um this is my first time.. i dont know when to change my wad.
I dont know if i change it too much or not plenty...i change it in the region of 4 times a day. hiii =] only just change it whenever u perceive like its drizzly and it hasnt absorbed the blood. It doesnt really situation how much u change it as long as it feel comfortable for YOU..just dont hold on to the same one on adjectives day lol yuck!!
hope i help =]
mandi xx
every 4 hrs or if you feel close to its getting full.