In April of 2019 a new bill was signed into law in the state of Ohio making it unlawful to perform an abortion if a fetus' heartbeat can be detected, even in cases of pregnancy due to rape and/or incest. Fetal heartbeats can be detected as early as six weeks into gestation, on average they are detectable around eight weeks; however unless a problem is suspected most women aren't scheduled for their first ultrasound until 11-12 weeks.
A deleted scene has Benson telling Rollins about a college pregnancy scare (which was first mentioned in the season 4 episode Mercy (2003)), and how she almost got an abortion (which Benson had hinted at in the season 20 episodes Man Down (2018) and The Good Girl (2019)).
The song that plays in the open is "Trying" by Rachael Bawn.