In April 2018, in the lead-up to the repeal of the Eight Amendment, Coppinger along with her colleague Paul Murphy held up a Repeal sign during leader's questions and was reprimanded by the Ceann Comhairle. Coppinger is a vocal advocate for abortion rights in Ireland, and was a founding member of ROSA, a movement for reproductive justice in Ireland. Earlier, in 2016, Coppinger tabled the private members' motion to repeal the 8th amendment.