In the last few days my already light positive pregnancy test are getting even lighter now my temp dropped dramaticly what's going on?

Talk to your gyn: It sounds like you're having some stress about a possible pregnancy. There are no gradations of pregnancy tests. They are either positive or negative. Your temperature is not predictive of pregnancy, but can be used to predict ovulation mid-cycle. If you are over 30 days from your last period and your preg test is positive, you are pregnant.

Pregnancy test: If your tests are equivocal, get serum pregnancy test. This should tell you better whether it is pregnant or not.