Cheesy - potted history, but the thread changed very rapidly, so I prob missed loads.
Ok, didn't read it all but I gather 2 mnetters (1 male 1 female) both married to others, but one pair living apart, were having an affair.
Woman mn comes online to say she's just found out she's pregnant and is 'horrified'. Lots of people share v.personal stories to try and help her.
Transpired that she had known she was pg for some weeks and then there was then some suggestion that the post was started with a view to the male mn's wife seeing it as she also posts here occasionally.
Eventually they were named and shamed and thread deleted.