If you're wondering whether it's safe to work out while you're expecting, runner Nell has cut down but certainly not given up...

Glowing Nell McAndrew with 20-week bump
She's 20 weeks pregnant with her second child, but mad-keen runner Nell McAndrew is still clocking up the miles. Earlier this month she ran the Royal Parks Half Marathon.
Pictured at the Pride of Britain Awards last night, she looked fabulous in a clingy silver dress that showed off her baby bump.
Nell, 38, a self-confessed running addict, told Hello! magazine that she has cut down her running from 90 miles a week to six miles a day, and is visiting the gym twice a week.
Nell McAndrew's energy tips
Nell McAndrew: 'why I love to run'
She told the magazine, 'A lot of people say to me "Should you be doing that?" They're concerned, but there's no need because my body is used to doing a lot of exercise.'
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