FYI: Today is April 11th, 2018 A history of my period in the past 4 months

PERIOD from January 13-17, 2018

PERIOD from February 9-11, 2018 (started on DAY 28)

PERIOD March 8-11, 2018 (started on DAY 28)

My mom has anemia, but I don't get irregular periods like her and I take iron supplement tablets. My period was supposed to come on April 4, after a 28 day cycle but I still haven't got my period. I usually never missed my period ias t always comes on time. I had the usual PMS symptoms up to April 4, high sex drive, bloating, little bit of acne, irritability. But nothing came on the 4th. The weather in was unusually hot lately, and on April 7, it fell to a really windy, cold and icy temperature, I got the flu on April 7, and a fever on April 8-10. I'm still sick today but from what I've read, it’s only if you're sick during your ovulation that it throws your cycle off track. However I got sick after I missed my period.

I'm not sexually active (in the intercourse sense). But on April 3, my boyfriend and I did some genital rubbing, where he slides his junk near my clit, but he always pulls out right before he comes, he never comes near my area, probably unless it’s precum. But this all happened very shortly AND on DAY 27 of my cycle. Otherwise I have had no other sexual contact since February 28th.

Yes, I’ve been a stressed over college work and SUPER irritable leading up to April 4. But, where’s my period?! I’ve been taking medications since I got the flu on April 7, but shouldn’t my period have started before my sickness/medication? Please help. I’ve been jumping into the worse thoughts lately, but conception is not even possible given that I’m technically still a virgin and only came into sexual contact right before my period is due.