my boyfriend and I recently decided to have sex. the first times we used protection but two times we did not. after these I've been very bloated. my lower belly makes weird sounds every once in a while and it's hard. sometimes the bloating goes down. I'm kinda worried because I'm only 17. please help. my period isn't due until two more weeks but I'm really worried. I understand that getting a pregnancy test will be the answer but I can't go buy one at the moment.