Strange and repetitive period after depo

Melodie • Baby #1 is 18 months... TTC#1= PREG at my second round of clomid. Now PREG with baby #2. First month we tried, no medication. Due date= nov.2018 ❤️ PCOS+MTHFR+FVLeiden homozygous. 11 years with my husband. 28M-28F
Every two weeks I have 2-3 days of spotting. Then, lot of creamy cm for exactly 14 days and the cycle repeats. Today, its my fifth ''kind of light period'' since mid september.... Do you know when my period will regulate?? Anybody experienced something similar? Im off depo since January 2015