Pauline Fleming, one of the all-female cast of five, insists 'ruin' is correct, but then laughs: 'I'm only joking.
'My baby's 18 now and I still remember what it was like from the minute she was born. I was 30 and I knew my life had changed for ever.
'My baby was very difficult in that she didn't sleep for two years, so nor did I. I went a bit bonkers. In fact I think I still am!'
Pauline's laughter is significant, because she believes that only by going through such an experience can anyone hope to look back, see the funny side and communicate it to Mum's The Word audiences.
And she says it is not only for women. 'A lot of men have fun seeing it, because a lot of them are fathers and have been kept awake at night too.'
Pauline's characters in two popular soaps, Val Walker in Brookside and Penny King in Coronation Street, were both childless and the actress believes that denied them a certain perspective on life.
As Penny, she faced challenging scenes as the live-in lover of factory owner Mike Baldwin, through his decline into dementia and death.
'I didn't know anyone who'd had dementia but I researched it and it was very hard to watch Johnny Briggs play that decline. We all knew we were touching the nation in a big way and it was received very positively. I have kept in touch with the Alzheimer's Society since then.'
She was sad to leave Coronation Street, having loved every minute of it, she says, but the door has been left open for a possible return.
Since then, Pauline has appeared in three all-female shows - the Vagina Monologues and The Naked Truth - 'there was no other way I was going to try my hand at pole-dancing,' she laughs - as well as Mum's The Word.
Mum's The Word is at the Kings, Southsea, from tomorrow (Thursday) to Saturday, April 24-26.
Tickets: (023) 9282 8282.