Groups which advocate for gay rights are preparing for the release of two Supreme Court rulings related to gay marriage.

The high court in March heard oral arguments in cases challenging the constitutionality of the Defense of Marriage Act (DOMA), which prohibits federal agencies from recognizing the legal marriages of gay and lesbian couples, and Proposition 8, a voter-approved amendment to the California constitution which limits marriage to heterosexual unions.

While the court could release the opinions at any moment, most court watchers believe it will hold off until the end of this year's session, on June 26 or 27.

The Human Rights Campaign (HRC), the nation's largest LGBT rights advocate, has already launched an online media hub dedicated to the cases. The group's Stand for Marriage page features background case information, possible court outcomes and a social media campaign.

The American Foundation for Equal Rights (AFER), which formed to file and support the Proposition 8 case, is promoting its Decision Day event, which is set to take place in Los Angeles at 5:30PM on the day the court rules.

“The day the court rules, we'll gather together in West Hollywood to hear from gay and lesbian couples, the attorneys who worked on the case, elected officials, community leaders and more,” the group said in a Facebook post.

If marriage equality is restored in California, it is likely to take about a month before weddings could resume, because rulings are not final until after a mandatory 25-day appeal window has lapsed.

Some gay couples in California are nevertheless forging ahead with wedding plans, such as Thom Watson, 50, and Jeff Tabaco, 36, of Daly City. In 2009, the couple celebrated with a commitment ceremony, and decided against marrying in another state.

“California is our home, so we want to be able to marry here,” Watson told the AP. “That was the reason after Prop 8 passed we decided to have a commitment ceremony. It was sort of like, we are not going to let this dissuade us from making that public commitment to each other, but we are definitely looking for that next step.”