Hi there,
After going through your question, I am of the opinion that:
1) Sometimes, hormonal imbalance can also cause
pregnancy like symptoms. Vomiting, nausea,
frequent urination, headaches, light headedness, cravings could be due to either pregnancy or even due to pre-menstrual syndrome (PMS)
2) Urine pregnancy test is not always accurate. Sometimes it could give false negative results.
3) If you strongly feel you are pregnant, you can get a
blood test called
serum beta HCG done which is more accurate. You can also get an
ultrasound done.\
4) However, my suggestion is that you just sit back and let nature take its course. you can wait for your periods to come and in case they do not come, you can get your blood test done. Till then, just relax.
I hope this was helpful.
Regards,
Dr. Shikha Shah