Missed period

pi

It’s been 14 days I’ve missed my period now. Every Pregnancy test I take is negative. I’ve recently got off My first Depo shot and my second one was supposed be on October 1st. It was my first time trying depo and I hated how my hormones were, gained weight and how tired I always was. So anyways it’s been 14 days I’ve missed my period and every test I take is negative. Anyone experienced this before???