What Causes Delayed Periods Along With White Vaginal Discharge?

Hi , so I had sex in February and I got my period days after. Now March came around and I missed my period. I didn t have any sex but my boyfriend fingered me and I was already 2 days late on my period I was supposed to get in March. He said I did bleed but only when doing that after I had nothing. I Haven t had my period for 2 weeks now and I took a pregnancy test when I was 8 days late and it was negative. I have white thick discharge could I be pregnant or is it more like my period coming?! Help!