I'm so unsure what to do

I'm 21- soon to be 22 and I'm currently pregnant.. I believe I'm six weeks but I'm not 100% Ive been nauseous this last week but not throwing up or anything. I have an appointment the 8th but I'm so unsure of what I want to do. I'm unmarried, in a stable relationship though and he's supportive of anything I would want to do but agrees now is not the best time. We're two new adults and dedefinitely cannot afford a baby right now but it's so hard. I want to keep it deep down but I know the responsible thing to do is wait until we're prepared and ready. I never even thought I would want children and the thought of pregnancy always scared me but now that I'm really into it.. I'm so unsure. It's our first baby. I do want to spend the rest of my life with him. ​​​