Unpaid maternity leave?

My husband and I make it work with both of our incomes and we make a good amount of money, however my job doesn't offer maternity leave. Although I'll only take a month or two off, itll greatly effect our income. What are some ways to make extra money while on maternity leave so we don't struggle so much. We're only able to save about $200-$300 a month after all bills are paid (not counting groceries) and I'm honestly starting to panic.