I worked my dates for my period in January wrong, I'm 4 weeks late today, and today should have also been the day that I finished my period for Feb but I haven't seen either, most symptoms but tested yesterday and day before and was negative. My sister said wait at least 6 weeks late before testing as the chemical might not be strong enough, i don't know whether to go the docs on Monday tho? advice? what would you lot do if this was your situation? X