Cervix question'

Jessica
So, I Know Once you have a baby your cervix opening will always stay slightly open... But what about after you've been pregnant and had a miscarriage is that still the case? 
Might be a dumb question but it's been weighing on my mind all day! Okay for the past two weeks. 
Yes I was checking my cervix for TCC... And I once I got pregnant I checked it twice. It feels slightly open but not quite the size where it was when I was ovulating.