Pregnancy or not. Please help me doctor!

I had a periods on aug6 i did intercourse on aug28 after a 5 i got a symptoms of vomiting more than 5 time a day loose motion more than 5 times a day and vomiting sensation while cooking food after a week I taken a deviry tablet to induce periods after stopping 3 day I got started bleeding but it's lite periods And after 21 days of intercourse I have taken beta hcg test it's negative After that periods I'm taking a yamin tablet for irregular periods this time I taken tablet for 18 days after stopping 4 days after i got bleeding only 2 days with heavy flow Yesterday I took a urine pregnancy test 45 days after the last intercourse i got faint line Then I went for beta hcg test that is negative Today again I taken urine pregnancy test that is negative Any chance of pregnancy will be there Please help me doctor