uncomfortable cramping also felt strange, light-headedness

Hi,
Welcome to ehealthforum,
If you had been monitoring your fertile days and have felt the pain around peak fertile days, it could indicate egg release. The regular periods also suggest that you are having periodic and regular ovulation. The recent symptoms could also be suggestive of early pregnancy. Urine pregnancy test kits usually start showing you positive results after about 20 days post-conception (roughly corresponding to about 1 week after your missed/altered periods). The test should always be done on early morning first urine sample to get accurate results (pregnancy hormone HCG is believed to be in highest concentration in this sample, and you should avoid lot of fluid intake and caffeinated beverages in the night before taking the test). Read the test results within the specified time. Visit your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and repeat blood/serum HCG level test (to confirm/rule out pregnancy accurately).
If you have been trying for pregnancy (for more than a year) and have not been successful, you should consider getting a complete infertility work-up done for you and your partner to see if there are any underlying causes for the infertility/inability to conceive. Treatment as appropriate (based on examination and investigations results) would be started to help you get pregnant. Consider visiting your gynecologist/obstetrician for further evaluation and assistance and be in regular follow-up and monitoring as instructed. Have diet with foods rich in zinc content to ensure better maturation of egg and sperms. Monitor cervical mucus changes and the BBT (basal body temperature) charting to predict your ovulation and time your intercourse for having fruitful results. Have intercourse in positions that allow for deeper penetration for high deposit of semen.
Take care.