Does a foul-smelling vaginal discharge, breast pain, and disturbed periods after unprotected sex indicate pregnancy?

Hello doctor,

I had sex with my girlfriend for 22 days, without any precaution but the ejection was out of the vagina. But from the first day, she has had some symptoms like abdominal pain that continued for 18 days, vomiting twice or thrice a day for 14 days, and white secretion from the vagina twice a day. After 14 days of sex, breast swelling and pain occurred. She did not increase food intake. Now after 18 days, there is no abdominal pain, but watery secretion continues and that has a foul smell, and breast pain and enlargement continues. On the starting days, she had papaya for three days, ginger hot juice, and tea with jaggery, for prevention of any chances of pregnancy. Now I cannot understand what to do. Is this a positive sign of pregnancy? Please help. Her period has also been disturbed since the last two years when her father passed away. She had also taken two tablets starting the day after sex, those consulted by the doctor for period regularity for her.