kalashnikov

I've been with my girl friend now for almost a year and we have a healthy sex life (we are both 19). I've always used a condom. She has considered going on the pill, which aside from an alternative to condoms, apparently reduces the effects of periods.
I would love to have sex without a condom (we usually start wthout but then I'll put one on about half way through - yeah I know that's not the best, but no problems yet) because obviously condoms detract greatly from the sensation.
I am worried about birth control failure though. If a condom fails, you will generally know it (if it rips or you spill a bit) - if you realize you got some in her, you would probably be able to tell easily, and quickly take steps to prevent a pregnancy.
But with the pill, if I am always ejaculating in her, I won't know if there's a problem until possibly a few weeks later, and it gets messier to deal with the pregnancy.

How does the pill compare with condoms safety-wise? comments? suggestions?

Another plus side of condoms: they're free and clean-up is easier.

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