Babysitter Worries for Back to Work Time

So, I am supposed to go back to work for December 1st. Luckily it is a salon my friend and I am starting up in her home so I am my own boss for the most part. The problem that I am faced with is that my boyfriend does not do regular 9-5 job everyday. sometimes he works overtime n very little or no notice late into the night. This poses a big problem for me as my babysitter I have secured only works until 5:30 at the latest. Now, not to be nasty towards in laws, BUT... They are retired and they cannot even commit to the two hours after supper two days a week to help me out. Then the Saturday from 10-2. I mean thanks grandma and grampa! It is really too much to ask of your child's grandparents to help you out. I know some people who have parents who are just dying to see their grandchildren. oh no. not these guys. I have no clue why these people cannot help us out. So, now not only do I have to hire someone from 930 am until 5 pm, but now I need to find some poor soul to pick him up from his sitters on Thursday and Friday and bring him back home and feed him and bath him. A complete stranger!!! I mean isn't one complete stranger babysitter enough for one poor little baby. In case you can't tell I am a little begrudged by the lack of support the in laws have shown us. Any comments/suggestions are greatly appreciated.