Think it looks like I cant get pregnant emotional support :( needed

Im 18 engaged , been trying get pregnant for just over six months now. Currently seeing a gynaecologist in three months time. Seen them once before and given contraceptive that stops periods. Decided not take them. Not on any protection, me and partner free from stis or diseases. Still no baby. Irregular periods and serious kidney problems (instis cystitis) condition of the kidneys that mimics infections , blood in urine regular pain during intercourse. Loss of control of bladder. Also seeing kidney specialist in three months time. Regular sex on the right days (chance of pregnancy days) no baby .... problem with my woman bits inside (womb, ovaries) properly won't be able carry a sweet child.