sever back and bone pain

AbGo

i dont know if im pregnant or not my last cycle was 20/05 and then i dont have cycle untill now with mild lower abd pain and some time this pain disappear .. im working and i was on leave and today is first day for me at work .. i just come back to my home i had a sever back and lower bone pain .. i cannot tolerate the pain its lower back with spine and shoulders .. abd mild pain ... but the problem is my bone i had a sever pain ... i did pregamnacy test may i could see fine line but im not sure so i will not with it until its very clear line .. now is my sx going with pregnancy ?? and which type of analgesic i can take ?