Am i pregnant or ovulating?

hi! had my last mens on May 02-lasting May 07 2011. and now june i am expecting to have it at least the same first week or 2nd week of june but its a delayed as i am an irregular when it comes to my period. my husband and i had sex on mAY 12 and May 13, 2011. 2nd week of june i had experiencing a bad leg cramps, back pain and jelly like egg whites secretions on my vagina, as i am thinking i could possibly ovulating and my mens will come out any moment. had my spotting from 3 or 4 drops of a little blood, not so red not so pinkish, and the last drop i think was a little brown.. we are trying to conceived for the past 1 year, i had trauma in using pregnancy test so still im not taking any, can anyone explain it is the right time to take a test or not.. i feel pitty myself overreacting but i just wanna be pregnant im really would give me chance.. thanks...