I agree with above post as well
Good luck
your temperature changes throughout the day.
doing temperatures to track your cycle and see if you are pregnant is something you do once everyday, for months, just after you wake up. so this is not enough to say that she is or isn't, since we don't have a baseline temperature.
if you are planning a pregnancy try reading up on basal temperatures and perhaps using one of the trackers online will help you track your temperature.
if you are not planning and she is due for her period but has missed it. get a home pregnancy test.
good luck