Talk to Gynecologist on Gynaecologist

1 yr marriage.I had severe periods like pain from 27th day of cycle in lower abdomen and back but from last 2 days they are gone, only felt for few mins and seems like periods start but its only white discharge also felt 2 times last night while sleeping but gone just after sitting. I did my Pregnancy test today at around 8pm in pale yellow urine but this because I did it a bit early i.e. at 32 day of my cycle? Now the problem is I have to travel to islamabad from karachi by air on this I am a bit concerned if its actually a tell me is this a sign of pregnancy that pain stay for 2-3 days and then gone?