My first pregnancy this year took 9 months to achieve without charting. My second took 4 cycles, my current one took I think 2 cycles so yes I think it does help. I had a feeling I would be pregnant this time (even though the timing was off as my DF and I were only just reconciling) because I saw EWCM just before BDing and I O'd the next day. I then got a temp dip on 6DPO & 7DPO so from that moment on I knew I was pregnant (as the only other cycle I had with a dip that lasted longer than a day was a pregnant one) but had to wait til I think 12DPO til I could test and confirm it.