To date, the Gardner Grading System remains the gold standard for the conventional evaluation of blastocysts. However, the use of Time-lapse technology in Assisted Reproductive Technologies (ART) cycles provides a dynamic, morphokinetic assessment that complements traditional morphological evaluation, as vitrification and subsequent warming process may induce morphological and biochemical variations in blastocysts. After warming, 203 blastocysts, obtained from homologous ART cycles, were cultured in EmbryoScope to evaluate their morphokinetic modifications using Time-Lapse Technology (TLT). (I) The degree of trophectoderm expansion at insertion into the incubator (t0 exp), (II) the first signal of trophectoderm re-expansion (t first exp), and (III) the degree of expansion and morphology at two hours (t2h exp, t2h grad) were recorded. Statistical analysis was performed by SPSS version 29.0 and relations between I, II, III parameters and beta-human Chorionic Gonadotropin (beta-hCG) outcome, heartbeat, and live birth were assessed. RESULTS: Showed that t first exp was significantly associated with beta-hCG levels, heartbeat, and live birth outcomes. Additionally, blastocysts achieving complete re-expansion within two hours and presented optimal morphology exhibited a higher likelihood of successful implantation. Early biomarkers were identified through morphokinetic parameters derived from Time-Lapse technology, and pregnancy outcome prediction was improved by the combination of morphological evaluation with post-warming kinetic assessments.