Why Won't My Villagers Breed???

Juppers told me yesterday that Virtual Villagers 2 is out... so... being a game addict that I (sometimes) am, I started playing it. The basics are pretty much the same as the first Virtual Villager, but this time there are more things to do, like collecting rare items and at a later stage, you can change your villagers' outfits *o*.
With all that said, my problem with the game is at the beginning stage when the villagers WON'T BREED!!!! I'm trying so hard to increase the population, making them go at it one after the other.. but to no avail. They came out empty handed, with excuses like 'too hungry to think about it'. Yea! Right! If I find out they're secretly using contraception, I'll make them starve to death. MUAHAHHAHAHAHA (ps. there are no contraceptive usage in this game).

What kind of tribe feeds on coconuts and mushrooms anyway? No wonder they can't breed.... there are algae in the sea so my villagers are 'disgusted' and so... no fishies to eat.