my 16 year old friend had sex for the first time. She claimed to have used protection and is on birth control. She said it lasted 2-5 minute, although is fourteen days late for her period. Then again at the end of April, had one full 3-4 day period, then due to on and off the pill the beginning of may had spotting. She had sex more towards the end of may consistently on the pill for two weeks before having sex. is she good?