Lessons Learned based on my exes--
-Do tell the truth from the beginning. if you tell the truth after 6 months, you can just kiss your relatioship good-bye.
-Don't shower her with gifts, roses, et cetera-- it only arises suspicion-- why all suddenly you are nice, hmm???
-Don't be a cheapskate. If you will use the condom, at least pay half for it! say "Well it is for you to not get pregnant so why the hell should I pay for it?" will get you in deep shit.
hmm.... they are the lessons my exes should have learned but foruntately their numb-brains have enabled me to upper my standard and found a right guy now.