I lied to my husband...

My husband and I were planning on waiting to have a baby for another year, but we both really wanted a baby. I was on birth control but stopped taking it in secret because I was longing for a baby. I conceived and became pregnant and my husband is so happy and I've been letting him believe that it was just God's timing even though I was on birth control. But the truth is that I lied and chose to get pregnant... I feel so guilty but I'm terrified to tell my husband the truth. We are so happy and the timing is actually fantastic for us to have this baby, but I still lied about how I conceived. Please help me figure this out...