The couple waited a year to start trying to have a family, and Makayla was born in 2014. After two miscarriages, Mrs Wellington fell pregnant again 18 weeks ago.
Both were planned pregnancies, she said.
Mrs Wellington said that coming from a broken home, it was so important to her that her children grew up in a loving, secure environment with a mum and dad in a committed and loving relationship.
We have also seen the blessing of waiting to have children in a secure marriage.
After the failed relationship, she was determined to wait until she found the right man to share her life with who also wanted children, and was "blessed" to find someone with the same values as her.
"We have also seen the blessing of waiting to have children in a secure marriage.
"As older parents, we are more relaxed and secure in our relationship. We have done our travelling, socialising, built our careers and set up a loving home together, and are both more focused on raising our children."
Mrs Wellington is a qualified teacher aide specialising in caring for special needs children, but is currently a stay-at-home mum. She also volunteers at the Tauranga Pregnancy Choice centre, an organisation which supports mothers who have unplanned pregnancies.
Mrs Wellington said the hardest part as older parents was coping with lack of sleep.
"But to me the age when you choose to have children doesn't matter. What matters is being in a committed, loving relationship with the right person for life, so that your children grow up in that environment knowing they are loved, secure and part of a family unit for life."