Going off the pill

Hi! I’m twelve days late from when I was supposed to have my period. I had my withdrawal bleeding March 4-8. I haven’t had anything but cramps, took a pregnancy test a week ago and it was a BFN.

We are going to start trying once I have my period and I know it could take a while to get regular again after going off the pill. (I was on it for two and a half years). Do you think I should test again to make sure I’m not pregnant? And how long did it take for you to have a normal cycle after going off the pill?