I had sex with my boyfriend for the first time, and after the unprotected sex, my stomach been making some loud noises, what does that mean? please help me understand, i am scared i may be getting pregnant

Conception is possible with unprotected sex but the stomach (or tummy) loud noises are certainly not a symptom of pregnancy.

Conception occurs within day or so of the sex. It takes about 3 weeks for the embryo to make enough HCG for a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully.