To get pregnant

Mummies tomorrow 21 July should due my period. Now tonight i can see little kind of stain like brown yellow stain . Does it means no chance to get pregnant! 😭😭😭😭 i have been doing it since april. My last cycle i did my deed 2 times in fertile window once on ovulating day n after ovulation. What more i can do😢😢 my first born i did twice and boom i got her.