I had sex on Thursday condom broke and I took plan b on Friday my period was supposed to arrive on Saturday but it hasn’t . I know I was not ovulating once I took plan b ( I take ovulation tests ) I ovulated about 2 weeks ago . This is my very first time taking plan b and I’m confused does plan b delay my period even though I was about to get it and ovulated already ? Also I am getting cramps as if I were to get it but I don’t .