Talk to Gynecologist on Pregnancy Symptoms

hello.i got married in March30th.i need to ask the you the pregnancy sypmtoms.i know i can Google but i need you to help me. i am not sure weher am pregnant or not cause from last 2 months my periods were not regular.they were regular ever since they started.but fron last 2 months they were not usualy i before period i feel pain in my chest and sometime in lower back too . now problem is i got my last period on 1 april.they lasted 7 to 8 days .and now its 14 may.they havent come.i am feeling pain in my chest like i usually do .but still its been 14 days and they havent come.i am not feeling anything at all.nothng unusual.am really worried about it.i do not have access to the pregnancy test strips right now.i cant wait any more. please if you could help me and tell me wether am pregnant or something else .i dont want to get pregnant rigt now.