Periods after miscarriage

began bleeding on New Year's Day, was then confirmed two days later that I was experiencing a missed miscarriage. After having a natural miscarriage I had my 1st period approx 4 weeks after. Am now waiting for no. 2 to begin  

Anyone experience with irregular periods after miscarriage. 4 days late now on second period and have been ttc since January. Not positive after all that happened though