Have only 1 period a year. had intercourse 41 days ago and had a hcg quant done today. would a result of <2 be a result that i am absolutely not preg?

Not pregnant: Low result means not pregnant. A pregnancy test is very accurate 3 weeks after sex (3 weeks after when conception might have been) or 1 week after missing a regular period (in women with regular periods). If done sooner, a positive result is likely real but a negative result may be due to testing too soon (such as less than 2 weeks after sex) and thus lead to a repeat test.