Withdrawal method

Me and my boyfriend used the withdrawal method about two weeks ago (very irresponsible, I know) and lately I’ve been very paranoid that I’m pregnant. Is two weeks to early to have symptoms? My boobs are very sore but I just finished ovulation according to my discharge and my left ovary has been cramping for about a week now. My acne is also the worst that it has ever been but it could also be from stress. My period isn’t due for another week, but I’m really worried about it.