While a beard or moustache will not be a problem for your new bride, freshly shaved stubble is definitely an irritant if you are giving her fellatio (performing oral sex on her). Since the vagina is a delicate area a prickly beard can cause abrasions on her delicate skin. However kissing on her lips and sucking the nipples will not be an issue. Prickly stubble is a problem not a hairy beard. Be guided by what your wife desires. She will convey her objections to you.
Using a condom to ejaculate while having sex with your wife, is the best alternative. For one, it removed the dread of having an unwanted pregnancy. If you are comfortable using a condom, then there is no issue. Later on however there may be times when your wife wants to experience skin to skin feelings. But by then you would have worked out what is the best method of contraceptive tht suits you both. Porn stars as you have rightly pointed out use pills as method of contraception but for the common man the condom is the best method to avoid an unwanted pregnancy. You can also try the withdrawal method, but this is based on luck.
Coming from conservative families is no reason not to broach the topic of sex. In any case, it will be up to you do so. If you will be dating her before marriage, it is advisable to talk about methods of contraception , how you both will prepare for the first night etc. If this is not possible, sex happens when it should. There is no need to ask for it. Be loving and caring on the first night and kissing will lead to fondling, removal of clothing and then sex.
We have in the past touched on the topic of first night sex. Search for it in the Search Box.
All the Best for your impending marriage. Relax.