Like what has been said above, you need to leave the car a while then dip and dip and dip. Don't stop checking the oil until you are sure of the oil level and do not just guess! If you have too much oil in you will have excess crank case oil pressure and need some sucking out, or just do an oil change if due.
You may feel a little silly now mate but you would feel it a lot more if your engine goes bang and you end up with a big bill