DS is 9 weeks and is ebf- has just had the odd bottle of expressed milk if I have had to go out somewhere without him (not often!). I bought a medela swing breast pump second hand and it has now lost suction on me (serves me write for being a cheap scape!) I have tried replacing the valve and membrane but suction still low and no milk bar a couple of drips being expressed!. Due to go my works christmas party this friday. Can't really afford to go down the route of a new pump and being that I only plan for ds to only have the occasional bottle would it be reasobale just for dh to offer formula when I am not there?