A HBDHB spokeswoman said a life preserving service agreement had been agreed with the union, and they were "confident mothers and babies have been well cared for during the strike action period".
Fifty per cent of midwives employed by the HBDHB are union members.
Midwives were offered the same pay deal negotiated by the New Zealand Nurses Organisation (NZNO) for nurses, but rejected it.
MERAS proposed lifting the starting salary for midwives from $49,450 to $56,788, which was equivalent to the second step of the nurses' pay scale.
Fellow Hawke's Bay MERAS representative and staff midwife, Sarah Joyce said they wanted to be recognised as a different workforce, particularly to nurses, with different skills and qualifications.
Midwives gained recognition as autonomous professionals in 1990. Joyce said they have a high level of responsibility, study for a four year equivalent direct-entry degree, and their scope of practice includes a high level of clinical decision-making.
"Unfortunately, our profession is at a crisis point. Midwives are leaving in their droves."
Joyce has been a midwife for the past 10 years and says she plans to become a self-employed Lead Maternity Carer.
"It's not just financial reasons, but it is the lack of respect for our profession and what we want."
Negotiations are set to begin today.