Am I ovulating or not?

I took plan b a week ago but my period is on time but my breast aren't acheing like usually nor am I cramping bad like usually but I'm heavy. I've been eating only veggies and fruits and drinking alot of water with lemons in it only everyday, could that be why my breasts aren't tender and I'm not cramping?

I was told women aren't suppose to cramp anyways. But I also was told tender breast during period means I'm ovualting. So am I not ovulating?

Two questions in one to be answered please!