My bf and I had unprotected sex June 21-22 I was ovulating so I took plan b June 23rd but we had unprotected sex again for the following day or two I spotted 6 days after (very light, then heavier, then light) for 3 days so i though this might be my period. Then spotted super light-creamy texture, barely noticable on toilet paper July 11-14. I was expecting my period July 29th but spotted the 28th and it stopped the 29th in the morning (only used panty liner)

Is this normal after plan b or could I be pregnant?? (Last period was May 28th-June 2nd it usually starts the last week of the month and transitions into a day or two of the next month)