Just wondering

Je`Niqua • Proud wife, mommy of four; 1 bonus son, 1 bio daughter, twin boys
Hi, 
My name is Je'Niqua and my husband and I have been ttc my first biological child (I have a stepson) for about 4 months now. I was on the depo shot for 1 1/2 years and my last shot was in feb/march of last year. My menstrual cylcle returned and has been normal since New Years eve. I was wonder for those of you who were on the depo and have conceived, how long did it take?