No period after stopping BC

Gina • 💙Due Due 2022🌈 Dec 2021💖January 2021💙July 2018

My BC pack finished on March 15 same day my last period ended. I still haven’t had a period since and took a negative pregnancy test this morning... we are ttc for baby number 2 but I did not do any ovulation tracking this last month. Any one have suggestions if the period could just be late or still a chance to be pregnant?? Thanks!