I have recently bought a medela mini electric single head pump when my baby is 7 months old and have started solid. I am not sure if the pump is too weak to express any milk or my supply is too low to pump any out? The reason why I wanted to get a compact breast pump is because I am staying with my parents for a short while and they can help me to feed the baby when I am out. Any advise if I should get a more powerful one at this stage to try again (I am worried that my milk supply is too low to pump now since baby has started solid). If so, which model should I go for (I dont want to go for the top model coz I already have one back home)?