As someone who married quickly, I would strongly suggest to anyone to not rush to marry. I thought I had the best of intentions, but I now wish I had not rushed. Even if you've spent every day together for 10 months, you're still learning important things about each other. If my mom who'd been supportive and good to me suddenly didn't like my fiancé, I would want to know and explore exactly why. It may be something silly, or you may be in those blind early stages of love not seeing what she does. To me I think it's worth knowing for sure.