Terrible experiences with pregnancy but now I feel like I want to TTC?

I've been through a lot with pregnancy and I'm not sure if I should TTC. My first ectopic was in 2013 my tube was saved, my second ectopic (same tube) was 2016 and we tried methodrexate which didn't work and I ended up removing my left tube. A few months later I got pregnant again with a miscarriage. Shortly after my HCG reached 0 I got Nexplanon put in (I'm still in college and my boyfriend and I weren't sure if we were ready for children- I'm 25. He's 26) BUT had a chemical pregnancy in my right tube after the implant. My HCG is still decreasing but now I can't stop thinking that I should try now for a healthy pregnancy instead of keeping Nexplanon in my arm. I don't want to become infertile by waiting too long. I've already had troubles and I think I may want a baby. any thoughts? Advice?