Kumquat ?!? 10 weeks

Ruby

What in the world is a kumquat? Is there like a reason all my pregnancy apps keep talking about it? I mean it's not a common fruit in my life. Could have used a plum, or idk anything that felt less like an islult used in 8 th grade and more like the size of a baby.. ? I don't even know where to buy a kumquat.. I feel weird even saying it in my head.