How you got pregnant after so long?

So a lot of women in Glow spend a lot of time here. Talking with other women about their stress in getting pregnant yet when they finally do get their bfp they just leave. Like, "FINALLY , BYE!" No explanation on how they got pregnant, what their symptoms were that stood out. And I know if they had been waiting for months they tracked that like crazy. I know they are not obligated to tell us at all, but why not help your sisters?