N.O.
It is hard to say as the symptoms of both are super similar and can vary each month and each pregnancy. My experience was that my breasts were super tender and sore with my first baby (I never had any breast change with periods ever) and with the second baby I did not have much change until the start of my second trimester. If you normally have fuller breasts or experience change in them during or before your period than it may just be that but if you NEVER have any breast change before or during a period I would think you would be pregnant. TAKE A TEST! Best of luck!