getting pregnant...

i came off the iud a little over a month ago and i havent got my period this month i have really sore and swollan boobs i had spooting but for only a day im consitpated and i have eggish dishcharge.... im really emotional all the time.... and with the iud it puts like np hormones in you so its not that.... i took 3 pregnancy test and 1 of them cane up positive.... but it was really early... can i be pregnant or am i just over thinking things.?