I have unprotected sex (without ejaculation) on 12 of march this year and than I took unwanted 72 next day and after one two day I got periods. And than we have intercourse two or three time but protected last time we do in 27 of april my periods we're stops that time but now it's 30 april but I can't get my periods and have mild lower abdomen pain daily .from one two days I have some delay in periods in last year also having one month gap alternative periods. Is this just a delay in periods or I have to worry but no chance of any ejaculation whole time during intercourse. Protected and unprotected both plzz help.