Which birth control is best for me?

I'm 15, & have been on the pill previously for acne, it made me sick, that stopped when I ate when taking the pill. However I then started getting strange noises in my stomach so I stopped the pill and it went away. I'm now in a long term relationship and want to use a contraceptive along with condoms. I'm allergic to the mini pill, the original combined pill had strange side affects, and I'm afraid to get the "shot" or "injection" incase I also have side affects, and they'll last for three month. I also don't want to the coil or anything, I don't want to show a doctor my bits just yet. Help?