Mei Mei Mada byouki desu -( Mei Mei is still sick :( )

My poor doggie is still throwing up white mucusy stuff :(. The vet is closed on Sunday. We've only been feeding her milk and biscuits. i might try to persuade dad to go out and buy baby food for her at least she gets some vitamins. She look so sad. Mei-Mei- chan odaijini...Anyone who has a good idea why dogs do this let me know?