I had twins via IVF in November 2011. I can not remember my beta # but know it was nowhere near this one!! My 13dp5dt was 1250!!!! Next blood is tomorrow which will be day # 17. I know you can't rely on beta, Lau, blah, but I am FREAKING OUT that it is soooo high!!! Part of me would love another set of twins I admit, haha. What were your beta #s?