As of 2012, about 1 in 5 adults 25 and older have never been married , the highest proportion in U.S. history. The decrease is mostly due to changes in attitudes and priorities. Between 2004 and 2014, Gallup polls have measured people’s living arrangements , and shown some strong trends:

• A decade ago, half (52%) of young adults between the ages of 18 and 29 had never been married. Now about two-thirds (64%) of them haven’t.

• Over the same period, the proportion of young adults who are married has fallen—from 29% in 2004 to 16% in 2014.

• Meanwhile, the proportion of young adults who live together has held steady in the 13-15% range.

• Marriage has declined for thirty-somethings too, from 67% in 2004 to 56% in 2014. As of 2014, more 30-somethings are living together (from 7% to 13%) and more of them are single (from 15% to 19%).

Love is love

It will be interesting to see if the steady down tick in marriage keeps up as Millennials reach their 30s. In 2013, a different Gallup poll showed that the majority of young adults (56%) who had never been married hoped to tie the knot someday. And, who knows, maybe the recent Supreme Court decision making same-sex marriage legal in every state will slow the drop or even cause an up tick.

However you choose to live and love, we hope it involves a healthy and happy sex life. And whether you’re married, single , or living together , if you’re at risk for pregnancy and not committed to having a baby right now, make sure you’re committed to your birth control.