Any idea of what could be happening ?

Tiffany

So I’ve on birthday control for about 5 years I got off recently in October 2019 I I was having what was almost a normal period but on the 4of June I noticed I was bleeding so I thought it was my period but today I literally have no blood but maybe a dot . I’ve NEVER had this happen my periods are usually a week long also me and boyfriend do have unprotected sex a lot . Could I be pregnant and is it my body help I need suggestions