bfn but super sore breasts

Aly
Got a bfn this morning. Af is on wed (3 days). Started feeling some cramps this morning which is consistent with my normal period. :( I was so sure I ovulated on CD13 bc I got some pink mucus that day. :( I've had crazy sore boobs for about a week. This is my first month off BC; did anyone have really strong Pms symptoms first month back?