Okay this will be a long and detailed question, needing advice.

AF was June 2-5 lighter than usual.

Boobs were very very sore and never had that at all before. Took test about a week later and BFN.

Ovulation was 14-19th. Boobs have been sore and swollen since about 13th, getting worse every day. EXTREMELY nauseous to the point of gagging occasionally for about a week and a half. Usually no appetite but when I do get one it's fierce. Tested BFN again evening of the 21st. AF due July 2nd. Other than obvious "symptoms" I really think I might be pregnant. What should I do?

Thank you so much for reading and helping!