Coronation Street betrayal as Alina Pop's baby is not Tyrone's in Adam affair twist?

But was this a calculated move because Alina was already pregnant? 

This week’s spoilers reveal Alina is expecting a child, presumably Tyrones. 

After the news of Kirsty Soames’ (Natalie Gumede) dying, Tyrone is grateful for Fiz helping him organise the funeral and together, they explain to Ruby that her birth mother had died. 

Elsewhere, Alina is panicking, fearing she might be pregnant and heads out to get a test. 

At work, she finds out about Tyrone’s past with Kirsty and she is stunned. 

Later that day, she confronts her boyfriend, hurt she had to find out what happened from Sally about Kirsty’s abuse.