Hello. I'm 21 and I was due to have my period 2 days ago. I normally have my period regulary. But when I became sexually active I get irregular periods. The longest cycle that I had would be 32 days. I am not on birth control but my partner uses condom during intercourse. I get really anxious every time my period has to begin. I think stress would likely cause the delay. I did not notice any changes physically. I do however frequently urinate more. It could be because it is still a bit cold here. Should I worry that I could be pregnant? It would really be helpful to hear from you guys. Thank you/.