If it's any encouragement......I got amazingly pregnant whilst still BF'ding (I think Ceri was 14 months old), no AF, and PCOS.....for my first two pregnancies I had to use fertility meds as I wasn't ovulating....BUT then I joined a gym, was going 5-6 nights a week for about 40min each time, and that freaked my body out so much it started ovulating! Miracle!

Not sure if my experience can help others, but it's worth a try if you're not excercising regularly?