Kind of curious

So a few weeks back my boyfriend decided to tell me he wasn’t sure he pulled out all the way 😂 not really planning for a baby right now but if it happens it happens.. I was on birth control for PCOS but it started shutting down things I needed so I was taken off of it. Anyways I waited a few days before my next period would start.. about a week and a half after that incident to test. I took 3 and all of them came out negative. Currently I’m 17 days late, I know I have PCOS and that can play a big factor but my periods have been regular for a year. Should I test again?