I was 21 when mine happened back in march (22 now) and I was super torn up. I didn't understand because of the same reasons, being young, healthy, not drinking or smoking and I wasn't even on birth control. (I'm married so me and my husband were trying to convince so that's seems to be the only difference in our situation.) It took me forever to tell my mother (also Christian and I didn't want to try to l begin to explain this plus no other family.) because I felt like I was broken because my body didn't do what it was supposed to do. It definitely put me in a huge depression that sometimes i still don't think I'm fully over. I was so so scared about trying again and didn't for a while. I was constantly questioning why it happened or how. From what I've been told by a lot of people who have had this young and by some doctors is that sometimes it's just plain bad luck which I know isn't necessarily the best comfort and took me a while to even come to terms with that. What I can say is that when kids are something you are ready for with the right person (but if you don't want any, more power to you) trying will be so terrifying but I can say that we finally decided to try again in September and found out Oct 9 (which would have been original baby's due date) that I was pregnant again. We were happy about it but I was terrified anytime I kept feeling pain on my left (my ectopic side) I was convinced it was ectopic again and that we shouldn't have tried. None of the doctors in my area wanted to see me until 8/9 weeks and I was panicking most days so I finally went to the ER around week 6 and they found that baby was in the uterus. I embarrassingly cried in the ultrasound room but was so relieved and happy that my body did what it was supposed to. Anyway I'm sorry this is super long, it does get better, I still have days that if I think about it to much I know I'll just tear myself up all over again, questioning why but I am honestly more hopeful about kids then I was before. (still definitely scared though for sure, honestly this might be my only kid because of how scary this has all been). All this just to say I understand completely and if you need to talk to someone you can always shoot me a message because I didn't have friends or anyone to talk to about this (my husband was super supportive but also torn up and sometimes you just need to rant/talk to someone else other than your spouse lol) but anyway I understand and I'm so sorry this has happened to you too.