OP ..you might need to look at your problem from a different angle. IF you think it is most important to be there for your child than you will just have to learn to manage on 1 income.
Since you stated that your DH "has a job that basicaly payes the rent" maybe try to find a cheaper place to live. Look at your expenses every month see what you can cut down or cut out.
Look for creative ways to make extra money. Babysitting ..maybe not a very young child, but people do need someone for after school hours. Housecleaning, walking pets, etc on your DH day off. You or your DH doing handyman type of jobs for neighbors. If you make crafts, blankets, etc sell them at a craft shows.
There are ways of making it work.