No. You choose when you wish to receive your benefits. You can therefore have your benefit payments interrupted and have them restarted later. You must, however, respect the period within which they can be paid, depending on the type of benefit.
You must agree on the time of leave with your employer. The Act respecting labour standards contains provisions governing leave for family events. For more information, see Commission des normes, de l’équité, de la santé et de la sécurité du travail (CNESST) website or contact their staff at the Service des renseignements de la CNESST at the following number: 1 844 838-0808 (toll free).