Are my blood sugar readings good or bad?before meal 96, 1 hr after meal 196, 1.5 hrs 147 and 2.5 hrs 135.how much should they be?

This is pre-diabetes: Although you have not met the > 200 after meal, nor multiple > 126's fasting i submit starting low dose metformin may slow the progression to diabetes.Talk to your dr.

Glucose tolerance: Your numbers looks not bad at all. To judge it better do what is known as 3 hours glucose tolerance test with standartised glucose load. High likelihood you will get normal result.

Not enough info: These numbers do not look alarming. However, to measure your response to sugar loads, you need to have a standardized and defined sugar load. Your numbers might vary depending on the nature of the meal you ate. These will often vary if you are pregnant or not. You should let your doctor check this for you in a standard way.

Not bad: Your 2 hours is slightly high, but it depend if you are a type 1 or type 2 dm on oral meds or insulin, the average hga1c for these numbers usually between 6.5 -7%.