hi, ive been having sex since my last period 3 weeks ago with my partner, and never used protection, also im not on anything to stop getting pregant, but we have sex quite alot. ive drank alcohol 3 nights this week.. and ive been being sick for the last few days. with back pains, stomachache, feeling sick, being sick, cant face food. i dont drink that much normally maybe one night a week, just this once ive done more. i havent eat proper for 6 days, is there any chance i could be pregnant? i cant afford to pay for this to be answerd is there not a free option