I Had Period On 14th Aug And My Cycle Is

I had period on 14th Aug and my cycle is of 32-35 days. 1 week after my period, I shifted to mybf's place. I didn't had sexual intercourse with him till now but was physically close. I was expecting my period this week but its late. I took ipill 2 days back just for precaution but didn't had intercourse. I'm feeling pain in my abdominal area and suspecting that I could be pregnant as I got pregnant earlier without doing sexual intercourse. Pregnancy test won't really give accurate results. Shall I use unwanted pregnancy kit? Or should wait for another week? My bf will be leaving the country in a week so I'll be alone to do the needful if I'm pregnant.