Momcomesfirst - Sasha Pearl - Breeding Time -10... Jun 2026

| Day | Event | Details | |-----|-------|---------| | | First Mating Attempt | If the dam is in early proestrus (progesterone 1–2 ng/mL), a “preview” mating can be performed to assess compatibility, but no semen is deposited. | | –8 to –6 | Repeat Progesterone Test | Confirm rising trend; aim for 2–3 ng/mL before the first real mating. | | –5 | First Real Mating | When progesterone ≈ 3 ng/mL (early estrus). Use a fresh, high‑quality ejaculate (≥ 200 M total sperm, ≥ 70 % motility). | | –3 | Second Mating | Progesterone ≈ 4–5 ng/mL (mid‑estrus). | | 0 (LH Surge) | Ovulation Confirmation | Positive LH test → optimal fertilization window opens (≈ 24–48 h post‑surge). | | +1 | Third Mating | Immediately after LH surge (within 12 h). | | +3 | Fourth Mating (Optional) | If previous matings were with sub‑optimal semen quality, repeat. | | +5 | End of Planned Mating Window | No further matings unless a veterinarian recommends a later attempt (e.g., if progesterone plateaued). | | +14–21 | Early Pregnancy Check (Ultrasound) | Transabdominal ultrasound to confirm fetal heartbeat (≥ 25 days gestation). | | +30–35 | Mid‑Gestation Assessment | Re‑check BCS, weight gain, and overall health; adjust nutrition accordingly. | | +55–63 | Pre‑Whelping Preparation | Set up whelping area, review emergency contacts, finalize neonatal care kit. | | +63 | Estimated Whelping Day | Monitor for signs of labor (temperature drop, nesting behavior). |

: The "Breeding Time" sub-series is known for a stylized, cinematic approach compared to standard scenes, often featuring longer dialogue-driven intros and higher-quality cinematography. MomComesFirst - Sasha Pearl - Breeding Time -10...