not ttc

ok ladies need help...can lubrcant and ewcm be confused for each other? we are not ttc at this point out wedding is in 12 days...we had a little opps last night where so semen leaked out of the bottom of the condom while still inside...i started bugging...not on bc makes me way too hormonal and depressed...i am worried because this morning i had what i thought was sticky cm.....could it be lubricant? i am at cd 10 an usually ov any where from cd 13- cd 18... we could be safe still but how long can semen live inside three days four days? we might be cutting it too close? and advice? i am thinking of going back on b.c or something after the wedding. i am really stuck at what to do.