I had last periods on 13 dec. I had intercourse on 19 dec. I have 25 days cycle. I did upt on 7th 8th 9th 11th and 12th jan that came negative. After one week on 19th jan I had upt again that came negative and tvs scan also negative. I was then on crina ncr medication for 5 days and I had bleeding on 4th feb with heavy cramps. Today no bleeding but cramps. I did upt today that came negative. Is there possibility of pregnancy still? Should I get another tvs scan?