I had protected sex with my partner 7 days back. It was first time for her and she had severe stomach ache for 2-3 days and now is feeling constipated. Her next periods are due on 15-16th of this month. Though we cross checked our protection, i. E, the condom leakage and everything was fine and I'm pretty much sure that I didn't ejaculated in her, is there still any chance of pregnancy looking at the symptoms. Should we go through a pregnancy test now or after the periods are missed, if so happens? Kindly help.