I am currently trying to conceive periods have been 41 days for the past 8 moth I am now on day 43 could I be pregnant?

Could be. A good urine test should be + now and if - and u do not get teh epriod by monday then see your gyn for a blood preg test.
Yes. But if that is truly your cycle pattern, a pregnancy test may still be negative. If you still have not had your period in a week, then take a pregnancy test.