A survey by the government in 2016 found that "[o]verall, three in four mothers (77%) said they had a negative experience or possibly discriminatory experience during pregnancy, maternity leave, and or/on return from maternity leave."
The Equality and Human Rights Commission has extensive information on your rights while pregnant and in maternity (26 weeks after birth).
Maternity, Paternity and Adoption policy
Parental Leave policy
Flexible Working policy
