temp in early pregnany

can some one tell me if your pregnant does your temp rise or go down i have read web sites and most say on both and i dont under stand this spike or elevation thing x

I practice natural family planning so if you're charting your temperature, you will tend to find that it rises with ovulation and then, if pregnant, tends to stay up almost until the end of your cycle. Generally, if you're not pregnant, it falls again within about 10 days of ovulation.

I hope that helps.