HI,
I don't think you have much to worry about. Don't forget it's not just sperm leaking out, your probably contributing to the lekage from your own bodys CM. If your worried wait the half hour and then go to the loo, it makes you feel better. I was lucky and wasn't trying very long at all. We didn't bed everyday but I was on holidays and pretty relaxed as well so I guess that's more important than anything.

Good luck, keep trying, don't forget it will happen when it happens, It can take some healthy couples 12months.