Talk to Gynecologist on Gynaecologist

Married from 1yr and TTC.. I had severe periods like pain from 27th day of cycle in lower abdomen and back for like 2 days then they are gone altogether, now only felt for few mins and seems like periods start but its only white discharge also felt a bit cramp sometimes at night while sleeping but gone just after sitting. The day before Yesterday i also vomit a bit after eating 1 day old again yesterday I felt like vomiting after eating fresh pulao and also felt body pain nd fever like back pain few times.. I did my Pregnancy test early morning i.e. at 34 day of my cycle but negative.. Plz tell me is this a sign of pregnancy that pain stay for 2-3 days and then gone nd my all other condition ??