A few questions...

Hi! I just stumbled upon an ad for a diva cup today and I'm thinking about trying one. I've never heard of menstrual cups before, and I have a couple of questions. First of all, I am expecting my second child in 2 weeks and I'm wondering if you can use a diva cup for post-partum bleeding? I know that for the first few days after delivery you are too sore to have ANYTHING near your vagina, and pads are recommended, but I'm wondering about starting to use a diva cup 1-2 weeks post partum. Anyone here have any experience with that? Also, is there a difference between the diva cup, lunette, and mooncup? Just wondering if one is better than the others. Thanks in advance for any help or advice!