Pregnant? Help.

I lost my virginity on 4/5 which was 5 days ago. We used a condom and I’m pretty sure it didn’t break. I was supposed to get my period on 4/8 which was two days ago but I still haven’t gotten it. I’m kinda getting paranoid that I may be pregnant? My PMS symptoms are barely there anymore and I have very little discharge although I’m eating healthy and drinking lots of water. My periods can be irregular sometimes but I’m still nervous. Could I be pregnant? If I take a test how long should I wait to get an accurate result?