Can someone give me their opinion...

Mindy
I want some opinions Here. 
I have irregular periods.  I BD when I finally got a positive OPK. Now it has been 13DPO and I have diarrhea and period like cramping. I have been checking my cervix everyday past O. It is now really high up there and completely closed. Should I just take a HPT or wait? I just started checking my cervix, so unsure what it means. 
Any opinions or advice would greatly be appreciated. 😄