I had period on 8th March which lasted for 5-6days, I usually have a 28day cycle,I have sex by withdrawal method  on 24th March and I took ipill within 3hour for safety. I had withdrawal bleeding on 27th March which lasted for 3-4days the blood was brownish red and mucus like. In April till now i did not get my period but the home pregnancy test is showing negative result.Now I'm stressed out if I'm pregnant or not.  I'm having a white discharge. Sometimes I'm getting cramps.I did my home pregnancy test twice with a seven day gap and the result came negative. Why is the white discharge happening? Is there any sign of pregnancy? Or by when should I expect my next period? I'm in great anxiety.