IVF- failed Implantation. Get periods.

Married for 4yrs,unable to conceive Case history: 14yr-Attained puberty-irregular periods(60/80-90/120 days) 16yr-Regularization medicines(Meprate)+Siddha tonic; Estrogen tabs- resulted in side effects-got bleeding in 12days.stopped & gave Siddha medicines for periods. Gynecologist- gave Meprate & other period inducing tabs for 1yr. Diagnosed - PCO by USG in 19yr. 20yr- Ayurvedic treatment: Tonic (Lodhra/Ashoka),unnamed globules for period regularization.if stopped medicines,did not get periods.For 5yrs continued same. Marriage in Nov 2013, 3-4months Oral contraceptives for periods.Father-in-law, homeopath gave Pulsatilla,no remedy seen. 2014: 3 cycles Clomid+HMG-No follicles seen. 3D Scan- Unicornuate Uterus non-communicating left rudimentary horn- 1 Patent tube; 2015-2016: 4 IUI cycles:HMG/FSH+HCG trigger-good follicles- No pregnancy. Dec 2016 Mini IVF: Letrozol-FSH/LH/Gonadotropin/HCG- 4 eggs retrieved; [END.THICK- 10.6mm] 2 Embryos(grade 1) transferred- No pregnancy