Okay, I'm either on the 4th or the 5th day today of not being on my period. Usually if its late in comes on the 2nd day of it being late, but with that being said I ain't even spotting or anything this time like I would if it was one or two days late. O took a pregnancy test from the dollar store (the cheap off brand ones) Thursday night and it was negative, waited until today (Sunday) and took a different one that was clear blue digital, and it read negative. Today, however marks either day 4 or day 5 of not spotting or starting my period. What may be the cause of this? I haven't really been stressing or anything either, I've actually been calm and happy and content. I've been sleepy more and feeling nauseous, but can't or haven't thrown up tho off and on a lot here lately. And yeah I have unprotected sex and I'm not on birth control, but that's because I'm trying to conceive, I started trying last month and tried this month as well. And another thing I feel like my sex drive or whatever is higher than usual as well. What can this mean? What do you think I should do?