I've had 4 miscarriages and I'm very shaken ...

Good morning, dr. I did a curettage a month ago and until today my period did not come. How long does it take for her to come again? I had no relationship to be able to get pregnant at this time. And I already had 4 abortions and the latter I had to do the genetic study of the curettage material that was the placenta for the study. Does study examine the cause of my miscarriages? If not what exams do I have to do to find out? Please help me, I can not take it anymore and lose. The emotional can not handle it is too much for me. Thank you in advance for your attention.
Expert answer:

You can not tell when your menstrual cycle is going to go down sometimes takes time for the body to return to normal rhythm. Genetic testing can find out the cause of your miscarriages, but figuring out the cause does not mean you're going to be able to solve the problem. Should seek a specialized service to try a response (hospital school attached to some university is a good option).