hi, i am 28 y old, married sice 3 years , trying to get pregnant since 2 years , i had ectopic pregnancy since 15 months w ended by rt laparoscopic salpingectomy ., then i tried clomid for 3 cycles , HMG induction for 2 cycles , and i tried fresh IVF , with long protochol, i took 1 amp menogone , 1 amp fostimon 75 mg, 1 amp fostimon 150 mg/d. there was 36 mature foolicles , all fertilized well, then 4 good embryos were transferred on 3rd day but endsfer trano ed on 5th week by blighted ovum , then i tried frozen embryo transfer by thawing the embryos and let them grow to the blastocyst stage. we got 14 good blastocyst from 19 embryos, then 2 hatched blastocysts were transferred , i took estrogen valereate 6 tab/d till endometrium thickness 8cm ,then progesterone supp 800 mg/ d , aspirin 75 mg/d. but negative BHCG on due time. N.B a) semen analysis is good with no abnormal forms or motlity b) patent lt tube by hysterosalpigogram c) history of endometriosis discovered during laparoscopic salpingectomy. d) good hormonal profile FSH, LH, TSH, prolactin, anti-phospholipid tests 1- now i am planning of re do but i still have 12 frozen blastocysts , but i need your advise bec we thawed the 3rd day embryos from the first ivf , then let them grow till the blastocyst stage , then did the transfer the last time , then refreezed them again. will that work bec i will do FET the next month or i have to do a new fresh cycle? 2- and i want to know such failures related to the clinic , technique, non expert doctor , regimens i used or quality of embryos although they told us that they are good one? 3- what are your recommendations for next cycle? plz i really need your advice because i am very frustrated and breakhearted