Hi, I've been worried for the past few weeks that I may have become pregnant and I'm not sure if I have, I haven't got any money to but a pregnancy test so I'm not sure what I should do, I've been feeling very sick and feelings like I'm goin to throw up, it hurts when I finish a wee and I've been needing to go alot recently. I've been getting quite alot of headaches too. I'm not sure what the best thing is to do