Pregnant Bloodfin Tetra?

What do I do when my female bloodfin gets pregnant? I have her in a heated filterd etc. tank with two males, so I'm thinking she'll mate. But what do I do when she gets pregnant? I'd like the eggs to live! Some of my friends might be interested. Help!!?? And how long will she carry the eggs, and how will I know she's pregnant???!!! HELP!! I'm an amateur fish-person.