i have sex 2 times every night when my fiance gets home from work the last 2 weeks we have been doing it did it 2 times last night got up this morning light bleeding going on. I thought to myself great no babies for me we are trying for a baby but just to be sure light bleeding means i cant be pregnant right???? also i have read on the internet i could have sex the whole way through my period and there's a high chance of me getting pregnant whats the best way?