Instead of a few times daily, try doing it once or twice. By the way, there's really no such thing as too much masturbation. For some people, once a week is the norm, others will do it a dozen times a day. As long as the act is not interfering with your responsibilities and normal lifestyle, there's no harm in it. There are no fast rules for getting pregnant.
Some women see a sperm cell and conceive.
For others, it's a sweat and grind to try to get the sperm and egg to meet. By and large most couples conceive within about six to eight months of trying. The medical profession considers infertility a possibility if you have been trying longer than one year with no results. It can be frustrating for men, especially those of us who consider our little dudes specially trained commandos. Our frustration invariably begins with the thought that there may be something wrong with her.