Ttc #1

Hi all!  I just came off bc and have had one normal cycle. My husband and I have just started ttc this cycle. I had a normal period at the time I was supposed to this past cycle. I started using opk and got a peak day on CD 13. I have not noticed any cm at all since coming off the pill. This is concerning me bc I am wondering whether I am actually ovulating since everyone seems to have fertile cm when they ovulate. Any thoughts?  My husband and I did the every other day thing through my fertile week and also used Preseed.