Irregular cycles/TTC after D & C

Amanda
I had a missed miscarriage Dec 2014, no heartbeat at 12 week appointment baby stopped developing around 9-10 weeks. D & c Dec 31st, went fairly well I spotted/bled for 10 days then nothing. I didn't track ovulation that month. 
First cycle Jan 31st, 3 days very light. I'm not sure I ever had a positive opk that cycle but close to positive Feb 6-7 dtd Feb 6. All kinds of symptoms, bloated, headaches, tingling nipples, etc but 2nd cycle came 4 days very light again. 
Second cycle start was Feb 23rd, positive opk March 7-8, some creamy discharge last week for a couple days and no period. Test is negative and its day 31 of this cycle. Anyone had anything similar after D &C?