How did my grandma got pregnant? :)?

My grandma is like.. Prawly 45 or 46.. I'm her first grandchild, I'm 15.. So anyways my grandma told us that she is expecting another baby, that is her second child, my mom was the only child, oh and my grandma is 26 weeks pregnant and she's not that big to be honest.. Here's the real... show more My grandma is like.. Prawly 45 or 46.. I'm her first grandchild, I'm 15..
So anyways my grandma told us that she is expecting another baby, that is her second child, my mom was the only child, oh and my grandma is 26 weeks pregnant and she's not that big to be honest.. Here's the real question..
How did she get pregnant? I thought grandma's doesn't have sex..
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