6 weeks pregnant

So Tuesday I found out I'm pregnant. My boyfriend and I talked, him and I went to the doctor yesterday. He's 22 and I'm 18. Him and I are leaning towards The "A" word but I don't know if it would be wrong of me to want to keep.. I don't wanna feel like I'm ruining his life?? He told me whatever my choice is going to be it won't be bad nor wrong but I feel like he's hoping me to stick with what I chose first, but that's changing..?