A basal temp must be taken first thing in the morning prior to any activity even getting out of bed at the same time every day following a minimum 3 hour sleep. If after ovulation implantation occurs, a woman can expect her basal temperature to be between 98.1 and 98.5.
Your basal temperature will be slightly elevated when you are pregnant, it is going to vary from person to person and yes even from pregnancy to pregnancy. The best way to get an idea of yours is to temp every morning for two weeks.
During pregnancy your basal temperature should be .4 to .6 degrees higher than your normal temperature when you have your period. Your normal temperature during your period should be around 97.0 to 97.5 degrees.
Usually your basal temperature when you are pregnant is around 96. 8 that is a normal average for you. Most of the time during your pregnancy your temp will change just like your blood pressure. It depends on what activities that you are actively in. Check your temperature every morning before you get out of bed if you are concerned.