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For a normal 28 day cycle LH surge test must be started on day 12 of your cycle.
Explanations for negative results in the LH surge strip test may include:
1. Use of first morning urine. First morning urine should not be used for LH.
2. The concentration of LH is too low to be accurately detect.
3. When testing is performed too early or too late in the menstrual cycle.
4. If testing is stopped before the surge occurs, and should have been continued for a few more days.
The LH surge test is not a pregnancy
test and will not give any confirmatory findings. Fertilization is most likely from a day to three days following the LH surge. Since this favorable time occurs once per menstrual cycle, and for only about 24 hours, it is the best time for the conditions in the uterus
for a lady to get pregnant. Unprotected intercourse
is advised during the one to three day period following the LH surge to increase chances of pregnancy.
The home pregnancy test must be performed at least 15 days after unprotected sexual intercourse for most accurate results.
Cramping, gas discharge and nausea
are remotely associated with pregnancy in your situation.
Hope I have answered your query.
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