I think for someone to have not wanted kids for so many years, falling pregnant will be a massive shock. It's not just the "shit I'm pregnant" it's the life style change, the self employment with no maternity... it would be alot to take in. She's been very honest which I like, that's she's never wanted children, so it's not like she's ever fantasised about being pregnant and decorating nursery's. I think it will be a massive shock to the system, but usually the most unmaternal parents turn out to be the best. I also believe sharing the pregnancy with her sister and having babies within weeks of each other will be a great help and support. I wouldn't be surprised if she wants another 2 years down the like. Good on her for the honesty, there will be loads of couples out there just now in the same position, who aren't able to be so open.