When I was very little, I listened to my Mom talking to a neighbor and she made reference to herself in a specific time frame saying "when I was pregnant"...
I interpreted this saying as meaning "before I was married".
Why, I don't know. Later I said something to my Grandmother about my Mom "being pregnant, you know, before she was married..."
Grandma did not take it as the mistake of a child, and all hell broke loose til I was able to somehow explain.