What should I do about my status while waiting for my wedding day in August?

I came here to U.S with a J1 visa and my ds2019 expires on April 30th this year. I know that I could stay in U.S 30 days after the expiration of my ds2019. I don't have the two years residency rule. Me and my boyfriend are planning to get married on the last day of the month of August to give time so my parents could come because they are in the Philippines and also our housing would be available at that time. With that being said I would be out of status for a few months and I don't feel comfortable about it. Is there anything I could do or your office can help me process so that I won't be considered out of status while waiting to get married. I am just worried that my few months of waiting before my marriage would cause troubles like my parents not being able to come to U.S for my wedding and also my Sisters are planning to come to U.S in three years to study. I am really hoping and praying that you could help me in this matter. If there is a fee that I need to pay please let me know.