Ovulation on CD 8? First round of letrozole

Griffy • 33 y.o. Psych RN. grad school for NP. 💕 4 failed IUIs, IVF cycle 1 = FAIL, IVF cycle 2 = 11 frozen blastocysts ❄️🧫 FET#1 = BFP.

Is it possible to ovulate this early on CD 8? I ended my first round of letrozole yesterday but had a + opk today and EWCM. Never had either before. Feel like I have twinges in my ovaries. Can’t BD until the morning when I’m off work...😢 so confused!