cervix open after childbirth

Any one else's cervix seem like it's always open ever since they gave birth? Mine feels like it's pretty much always open a little like I could fit the tip of my finger over the opening. I gave birth almost 2 years ago and it wasn't like this before. I remember the end of my pregnancy checking and it being like SHUT tight lol. Could this be why I just had a miscarriage (4w5d) and why it took so long to get pregnant?