Your symptoms are not specific to pregnancy
. If you have always been having regular cycles, it is time to get investigated. Please get a pelvic/ trans-vaginal sonogram and see a gynecologist for an exam and to deduce the cause for your delayed period. It is not possible for any one to self-assess the pregnancy at such an early stage physically; you cannot palpate the uterus
unless it is 12-14 weeks; not by yourself. Please see a specialist for further care. Good luck.