best bet is to wait until the 2nd and see if your period comes...thats on sunday...if it doesnt then do a hpt....nobody can give you a "yes" you are preg or a "no" you are not...only the test will tell you for sure...best of luck
If you're still having your period every month you're more than likely not pregnant. If you were, you wouldn't be getting a period. You might have light bleeding, but that's just implantation bleeding. It wouldn't be like having your period. Tender breasts is also a symptom of your period being on its way. A lot of pregnancy symptoms like headaches and feeling sick/tired is also a symptom of stress, anxiety, change in diet. You might be getting those symptoms because you're stressing about being pregnant.
Take a test if you really want to know.
Unfortunately, nobody on here can tell you if you are pregnant or not based on the information given. The only certain way to tell if you are pregnant is to take a home pregnancy test or to go to a doctor and get tested. There are several things that can cause a late period (stress, illness, medication, weight changes, exercise changes, pregnancy, hormonal imbalances, PCOS, etc.). There are also several things that can cause fatigue, headaches, nausea, and tender breasts. These symptoms alone and the irregular periods do not mean that you are pregnant. Some women do bleed during pregnancy though. Have you taken a test at all yet? If not, I would suggest that you take a home test or go to your doctor for a test. Best of luck to you!