Viewers learnt how Graham and Andrea had spent the night together many years ago, which corresponds with nine months before Millie was born.
Whether or not he is the biological father, his chance of having custody of Millie could be hindered by several other factors.
Linda Lamb, Solicitor and Director at LSL Family Law said: “Courts will always prioritise the best interests of a child when considering who they should see and live with.
“With this in mind, being a biological relation to a child does not automatically mean that it is in the child’s best interests to see that person,” she added.
source: express.co.uk