Eat normal primal. Everyone has slipups and exercising a little extra isn't going to change what you've already put into your body. Also, our weight changes all throughout the day. IMO, the best time to weigh is in the morning, after urinating and with no clothes on. Weight fluctuates from day to day as well, so weighing every day isn't going to be helpful at all.
Just chalk up yesterday as an "oops" and focus on today