What to think..

​, we started best friends over text (met online with mutual friends) we finally met in person and It was love at first sight.. We have been dating fir 3.5 months, we are in a really serious relationship.. And we just had sex.. I'm only 14, and I don't know if I made a good decision or not.. And it didn't hurt during just now it's shocking pain.. I'm on the pill and we used a condom for like half the time.. I just need advice..