Losing my mind

Natalie
So i have a daughter but when i was pregnant i had absolutely no clue because i had gotten pregnant right after an ectopic. My hcg levels were 14000 which had doctors so confused because they didnt see a baby. Turns out her and the baby i lost combined hcg and she just doubled them. They thought she was going to have mental disabilities. My doctor never saw anything like it. Well she came out healthy and happy and is a 15 months now. My period was due on the 14th took a pt on the 13th bfn and one today also bfn. I have all the signs (nausea, vomiting, sore boobs, itchy nips, dark ring around nips, headaches, some back pain, and mild cramps a week befoe af, increased appetite). Im going crazy. We want our children 2 years apart so we're ttc. Its or first month. I just got off my nexplanon on the 9th last month. Doc said as soon as im off of it i could get pregnant right away just wait for my af to show. It did 5 days later. Also my cervix is high and soft. I think my body is tricking me into thinking im pregnant. But im also terrified of another ectopic. My last ectopic i had no symptoms (i have a high tolerance for pain) but was on the brink of rupture. I lost one tube im terrified to lose the other. Kinda breaks my heart because we did everything right and we both love children and want 4 but im afraid i wont have anymore. My mom wasnt able to have children after 23 im 23 turning 24. Sorry for the long post i just needed to talk maybe some advice or experiences?