I've been tracking my ovulation/period for the last 4 months and they have been pretty consistent. This last month during what was supposed to be my fertile window I used opks. For 7 days. No peak during that at all. And when I do have the surge, the next day my boobs are always sensitive until my period starts. Could I be pregnant if I ovulated earlier? Would that make me not sensitive right away like my usual ovulation and instead bring other symptoms to come?