Following a second miscarriage which was a twin MMC I gave consent for the pregnancy tissue to be sent to a lab for testing (I had a SMM to remove the pregnancy). Has anybody had this done before? What are they testing for and how long until I hear anything? Is it likely to be no news is good news or will they send a letter regardless? I know I should've asked all this earlier but it's not until you've have time to think that questions occur! I have read after 3 miscarriages there is testing so was a bit surprised to hear they were going to be testing this time round. They haven't tested me or my partner for anything just the pregnancy tissue.