To be or not to be?

Okay guys I need help.. Been fighting a lot with my man lately and it's all because of being moody a lot lately. I'm not supposed to start till the 17th well we had sex on a very big ovulation day and I don't know if I'm pregnant. A friend of mine told me sometimes when a woman is ovulating they can experience pregnant tendencies. Well this hasn't been the first time I've acted like this on ovulation days. Well when's the best time to take a test even if I get my period?