hi. maybe you can answer my doubts. i am usually having my period on time during the first day of the month and it is regular and on time. but now i am almost 4 days late. the problem to that is i had a contact last september 23 but my partner told me he didnt come. now im feeling most of the time very very tired and lazy and always sleepy. but its early for that symptoms right? but 2 days already i can feel a bit of pain in my abdomen area. do i still need to worry?