Need advice please

I'm 7 week/3days second pregnancy. First ended at almost 7 weeks so of course I'm scared it will happen again. I'm feeling good, have all the symptoms, sore breast, extra saliva, constipated and moody. My nausea is very light and off and on. Last night after I went #2, I wiped and saw a medium size thick jelly like discharge. No blood, no major cramps... But I'm scared I lost my mucus plug or it was something worst. Can anyone tell me if they had this happen?  I don't have an appoint yet with my OBGYN but feeling like I should call?