Negative pregnancy test, spotting week later no period

Hello me and my bf had unprotected sex around the last week of May We could have conceived round the 26th or later not sure it may have been a few days earlier. The reason for me taking the test is my period usually comes on the fourth. It never came I took a 2 dollar store tests both negative. A week later I started to feel symptoms like sore boobs and bloating, I had really light spotting for 3 days, and still no sign of a period. Is it possible I tested too early? Has anyone else had this issue please help. Lol This would be my first child so I really don't know what to expect beyond the tall tale symptoms we all know.