Thick endometrial lining 😳

Bella

Hi ladies, I have a concern... so last Saturday I ended up going to the hospital because I was bleeding with really painful cramps and sharp pain me thinking I was having a miscarriage, but it was just a really painful period. When they did the ultra sound my endometrial lining was 13mm thick(which was the reason of my painful period). Of course I had to do my own research and see what that really meant. After I did my research I’m going to set up a doctors appt ASAP. According to my research when you are menstruating your endometrial lining shouldn’t be thick at all. Af is gone (cd11) and I’m still having some light cramping. Have any of you ladies experience this?? Should I be concern?? I’m kinda panicking at this point because I read that thick endometrial lining causes infertility 😩