Heard of quite a few people who have conceived on cycle. Been trying for 2 months with my wife, thought we had it the 2nd month but turned out she was just over a week late. Cycle was consisting of test/deca/eq and orals thrown along the way. Hitting PCT hard in 2 days and hoping for luck this month. I don't know that being on prevented us, too early to tell however being on can certainly lower count and have a negative impact on the motility of sperm. Once you go off and PCT it should quickly be corrected unless there was a problem you had before cycling. I'm not going back on until she's about 5 or 6 months along, until then I'm staying off because this is important to both of us. If you are almost done then might as well finish it out and hit PCT.