(Reuters) - Spain's conservative government plans to ban abortions, overturning a two-year-old law allowing terminations on demand, a justice ministry source told Reuters, in a move likely to galvanize support among its core voters.

The previous Socialist government passed a law in 2010 allowing women to have a termination up to 14 weeks into a pregnancy or up to 22 weeks in cases of severe abnormalities, in line with most European countries.