Im not sure I understand where your clock starts? When we tried to have a baby or when we first met?
I first met my husband 22 years before pregnancy. I dated him 6 years before we were pregnant. We were sexually active about 5 years before pregnancy. We were married about a month before pregnancy and she was an oops. We took about a year of trying to have #2, and that was 4 years after #1. #3 was an oops and that was 2 years later.
Our son was conceived 2 weeks after I came off the pill. We were preparing to TTC after our wedding. I was thinking it would take us a long time due to some of my known issues (mild endometriosis). It took us 2.5 years to get pregnant with our daughter, and four miscarriages along the way. It was a long journey for number two, but well worth the wait! She'll be here in the next 7 days =)
Barely five months with my ex before concieving my first, then three months after having her, I concieved my second :) Dh and I haven't been preventing it, but we aren't exactly trying-it's probably been almost 3 yrs since we used protection.... :(