Hi Bianeczka, so sorry to hear of your troubles, unfortunately we know where you are coming from. As you can see from my sig I didn't get a positive until my 7th ET. I had blood tests which identified a blood clotting disorder and I believe one treated made all the difference. I would be pushing your FS for these if you not already done so. I also changed FS. Sometimes just a different set of eyes or hands can make the difference. FS technique for ET can be the difference. I also did the sharkeys herbs but made no difference to me unfortunately, they work I think when you just need a little help with hormone adjustment. I think your diet would already be what you need for good embies. I think I have also hear dhea for embie quality, and also that sperm quality kicks in after day 3 which can effect embies ability to progress so your DH should still be watching diet etc. that's all I can think of. If your are interested I posted in the success sticky thread about all my cycles and everything I did that might give you ideas. Wishing you all the best xx