..im a mother of 4 little girls..im 26..i totally know the stress of 'wondering'..if ur periods are usually on time..and obviously..this one is not..id definetly be worried..obviously ur wondering if u may be pregnant bc..welll im assuming ur having unprotected sex..well then of course..its totally possible ur pregnant..everyone always uses the 'oh maybe its stress' excuse but ive never found it to b true..if it was u id go and get a test..or..go to ur doc...ask ur doc to do blood work..they can tell u as early as 5 days pregnant..and cramping(very mild) is normal throughout pregnancy along with fatigue..etc..BUT u may want to find out if u are preg. ASAP bc if ur having cramping are are preg. this may not be a good sign. I know this bc I ve had 3 miscarriages..mine were at 6 weeks,8 weeks, and 13 weeks..you need to get a urine test...check that out..then even if the urine test is negative..go to ur doc. and tell her ur late and want a blood test done
hope this is helpful..even a little..ttylll GOOD LUCK!!