A new abortion law in Spain that allows unrestricted abortions in the first 14 weeks of pregnancy takes effect today.
Hundreds of protestors rallied outside the capital in Madrid to challenge the law, which allows girls as young as 16 yeas old to have abortions without parental consent.
The conservative Popular Party has filed an appeal, arguing the new law is unconstitutional.
The group cited a 1985 ruling from the court that said a woman's rights could not automatically take precedence over those of an unborn child. It could do so only in cases of rape, fetal malformation, or when the mother's health is in jeopardy.
"The drama of abortion has been in Spain for 25 years, it has caused terrible pain to over a million women, more than a million children have not been born," protester Benigno Blanco said.
"With this new law this drama is going to get worse. What we want to say is 'enough of abortion,"' she said.
Equality Minister Bibiana Aido said the government was unworried by an appeal.
"The government is fully convinced of the constitutionality of the law," she told Cadena SER radio.