Help kickstart labor

I need any tips or tricks that can help me go into labor. I'm due to have a csection, and i requested a medical release from work which they denied. I need the medical release in order to get my maternity leave due to some bs within the company, but if i go up to my surgery date, I will not get it. The doctor was not sympathetic at all and someone i have only seen one other time my whole pregnancy, so there was no use even trying to explain the situation