Hello, i had last sexual activity on 16 November which was just naked genital rubbing no ejaculation near or on vagina, some precum might be present but rubbing was only for 4-5 seconds, After that i had me period on 29 November normal bleeding lasted for 4 days, After that i took a urine pregnancy test it was negative, then i got my usual period on 29 December and 1 February also and i took another pregnancy test between them, it was negative Can i still be pregnant after all this? No symptoms no nausea nothing. I'm sharing a pic, is it linea nigra or normal?