A negative ovulation test strip during ovulation is normal and does not mean that you did not release an egg during ovulation. In fact, there is only about a 24-hour window after the egg is released, and during this time, if a woman uses an ovulation test strip, it will usually show a positive result.

However, if a woman has a short menstrual cycle or has some problem with her reproductive tract that prevents her from releasing an egg at the optimal time, using ovulation test strips may cause errors. Therefore, if women have had multiple tests before and the results have been negative, they should undergo further testing to ensure that they are within a safe period of pregnancy.

If a woman experiences any symptoms of discomfort during the test, such as diarrhea, headache, nausea, etc., the test results may be inaccurate. Therefore, if women experience any discomfort during the test, they should stop the test immediately and consult a doctor.

To summarize, if women use an ovulation test strip during the test and the result is negative, they are probably pregnant within a safe period. If a woman has any concerns, she should talk to her doctor or a professional fertility counselor.