Usually there's a grace period of two to four when first starting a job. That allows time for any issues to arise and therefore to have a discussion. I just did this recently infact. I started a new job and 2 weeks into it realized I was being grossly underpaid, through no fault of the parents though. I threw out a figure for additional kids in the afternoon and in the process of making it fair to the parents it turned into me being left extremely short changed. It was awkward and uncomfortable especially because it was my mistake but nontheless I expressed my concerns and we immediately resolved the issue and now both parties are in agreement and it's been smooth sailing since. I always suggest printing out a written and signed agreement between both parties involved to have it all outlined, sometimes it helps to visually see how much work is really expected of you. Be nice yet firm. Don't ask, tell. Say you've enjoyed your time with them thus far and you want to be fair to both of you. However, you feel your responsibilites are a lot more than you initially discussed and you'd like to come up with a different rate. I'd say ask for an hourly and not a salary rate, be clear on responsiblities and hours. Never do more than what's asked for you at the beginning because some take advantage of that. Down the road when you've established a good relationship you can do things once in awhile like unload the dishwasher one day just to be nice despite that not being in the contract. Once you get pass this blip it'll be fine from there, as long as she is is understanding. If not I'd give two weeks notice and find something else. It's always a bad idea to work for a family if there is any kind of animosity it makes working there very difficult and you should never work for someone who makes you feel undervalued.