at age 19 i had the same questions. the answer came 2 months away, thats when i knew i was pregnant. at the age of 39, i had the same question. month after month i had a period. the periods were irregular. one day i put in a skirt to go to a labor day picnic,and the skirt fit tight in the stomach area. i was confused because i hadnt been sick, or missed a period. that was 9yrs,4 months 1day ago. i went to my old job, got a free ultra sound, found out i was just a little over 19 weeks pregnant. now i have aboy 29,a girl 25,and a girl 9yrs!. its best to go see a professional to be sure. never wait, because if you intend on keeping it, you want the best care for yourself. waiting hurts your choices, and expenses. go find out. there is orginizations that have free services,like community services for helping you make the right choice, and ones who give you a choice " Feel me ". i worked at a service that provided you with all the above. get checked! not doing it now only burdens you. Oh! make your own choices, dont let anyone make your choice-unless its your mom, listen to her. from experience, moms know best!!!!! and they only mean the best for you