Might be pregnant !!!! Help

So about 2 weeks ago i had sex for the first time with my boyfriend and he fidnt use a condom but he said he didnt cum in me so i thought it would be okay ... About a week later i started the pill and i been taking it everyday but this morning i woke ip at 4 in the morning with extreme stomach pains and i was vomitting like crazy ...i havnt comfirmed im pregnant but ive been sick ever since .. And Im too scared to tell my mum because she will make me get an abortion because im only 15 ???? What should i do ?