Please help!☹️

I got off my period on the 17th and my boyfriend and I had sex on the 19th with a condom (he didn't come he only pre came) and we did the water test making sure for no holes and their weren't any, then did 69 and he came in my mouth. We made out on the 19th and we did hands stuff and oral but he didn't ejaculate. My period ended on the 17th I've spotted the 17th nothing on the 18th and then on the 19th and 20th and 21st I spotted. My boyfriend and I are worried of pregnancy should we be?!