Embrace came under financial pressure towards the end of last year when some of its contracts with Norfolk County Council expired and were not renewed.
A spokesman for Break, which has 421 staff and 595 volunteers, said the merger made sense because the services provided by Embrace’s eight staff fitted in well with its own objectives, and because the charities covered similar geographical areas.
There will be no redundancies as a result of the merger and two of Break’s staff have joined Embrace’s team. Embrace will be run as a separate project within Break.
Cindee Crehan, project manager at Embrace, said she had been in talks with Break about working together for a while, and after the decision about the contracts the two organisations started to discuss a merger.
"Becoming part of Break will provide Embrace with much needed financial security as well as enabling us to give our teenage parents a greatly enhanced service," she said.
The charity will move into its own office at Break’s training centre in Norwich and will continue to provide its services to teenage parents in Norwich and King’s Lynn.
The merger will take effect on 1 October.