By Olivia Wheeler EastEnders is lining up dramatic scenes next week following Nadine Keller’s baby bombshell. Soap fans will recall that Jay Brown grew close to escort Nadine, who has a striking resemblance to Lola Pearce, last year following the death of his beloved wife. In upcoming scenes this week, Nadine drops the bombshell that she is pregnant with his baby leaving Jay flustered over what to do. Next week will air the aftermath of the bombshell as it’s the day of London Marathon but a deflated Jay insists he isn’t going to run following Nadine’s revelation but Honey Mitchell persuades hi…