(Not a question)Im worried I cant have more kids

My fiance and I have decided to try for a third child I have two kids from previous marriage and he has none so of course I want to give my husband at least one child we've tried for the last 3 months and so far nothing he's convinced himself that this month is for sure the month he is positive that I am pregnant I myself am very doubtful I'm worried that I may not be able to give him kids my last child was 11 years ago and my oldest is 13 I've never had a miscarriage I've never had an abortion and I've only been pregnant twice in my life so my mother tells me not to worry none the less before I became pregnant with my 13 year old daughter I was told that I had a downward cervix which would make it very difficult for me to become pregnant(I never heard if such a thing) they also thought that I may have had cervical cancer which they did a bunch of tests when I was about 17 to determine whether or not that was true I didn't follow through with the entire process because I was afraid and shortly after that I end up pregnant with my daughter so of course the doctors were idiots in my mind but now coming around at 31 and attempting for my third child I'm not sure if the doctors were actually idiot or did I allow something that could have been taken care of years ago to become something much bigger Now. I'm making an appointment with my primary care physician but I'm terrified at the thought I wont be able to conceive I'm terrified that I won't be able to give him a child I know that he tells me he loves me and he is here to stay, regardless and he feels that my children are his and that he isn't lacking anything but I know that as a man you want to see a piece of your self carry on in this world

( I'm just venting sorry ladies, can't talk to my family about ttc they will just stress me out)