Af due tomorrow... cervix high super soft and closed


Help please!!! Any info? Af due tomorrow I’m having creamy white CM and my cervix are high soft and closed I took a test this morning BFN 😒 My estimated OD was the 17 th of February.. My husband and I were together on February 18 th !!! I know that our chances are slim the day after ovulation but there’s still a chance!!! Wouldn’t my cervix be low and hard now that AF is just a day away and no creamy CM?