Back pain - 9 weeks!

Blanche • 35 year old with Rheum Arthritis..trying since Sept 2015.. 2 miscarriages *UPDATE! PREGO with our 🌈👶🏼 * Due Jan 2017
Am I doomed? I keep telling myself it's just normal (maybe the doubling of these boobs!) but online stuff says could be a miscarriage 😳 No other cramps or spotting though..