Can't see it being Jack he is too tied up with Roxy and Ronnie to get involved in another pregnancy battle. Could be Archie as he's coming back. But my gut instincts tell me to stick with Phil as the bosses of EE like to bring misery on to our favourite characters Heather and Shirley are best mates and what better to pull apart a friendship than to have your best mate sleep with your bloke.

PHIL'S THE DADDY!!!