FlytrapCare Carnivorous Plant Forums

Many drosera seedlings look very similar. If conditions are as you say; madagascariensis seeds only sown a week ago, no other sundews have been near those pots, no other seeds have been near those pots, they have been alone for some time, have not flowered, etc., then they are Capes. Drosera seeds very, very, very, very rarely germinate in a week, and, if they did, it wouldn't be anywhere near that big. At most, it would only have cotyledons, no carnivorous leaves yet.
Capensis are the "Fertile Myrtle" or "Potent Pete" of the drosera world, and breathing on them wrong may cause them to throw up a baby from the roots. But there is no immaculate conception with carnivorous plants, so it's division from one of your Capes.
I gave a single Cape to my neighbor last year, with instructions to cut the flower stalk unless she wants thousands of plants. This Spring, about March, we separated out 8 divisions. We just separated out another 7 divisions last week.
Life happens quickly with capensis.