DNA Doesn't Lie

Jayna, Christa, and Grayson Sims are three siblings who sell their home after the death of their father, leaving them homeless. Albert Regan, a long-time neighbor invites them to move in with him, so they could be together and finish college.
Jayna marries Monroe Regan, Albert's grandson, the boy she fell in love with when she was just thirteen. They must keep the marriage a secret as Olivia Regan; Monroe's mother would do anything to keep them apart. Before they can announce they were married and expecting a baby, Monroe is killed. Jayna must then fight her mother-in-law for custody of her baby, and marries her lawyer in order to protect her child.
Christa marries Harrison Ashby, only to lose him in a terrible car accident. When their son is born a month later, the doctor, her conniving father-in-law told her to use, informs her that her son has died. She doesn't believe the doctor, and five months later she finds the child had been given to another couple. How will she get her son back?
Grayson finding out his wife was pregnant by the man she had been unfaithful with, must wait until the birth of the child before he can divorce her. With his marriage over, he falls in love with one of his employees, who turn out to be his soon-to-be ex-wife's sister.