I really think something is wrong with me I'm 30 years old and before i ever got pregnant i wanted 2…

I really think something is wrong with me I'm 30 years old and before i ever got pregnant i wanted 2 kids then i got pregnant and it was an etopic pregnancy had surgery to remove one of my tubes, i then got pregnant with my son after i was cleared and after i had him i was on birth control got pregnant on that and had a miscarriage so i mean I'd love another I'm just scared and i feel as my clock is ticking and time will be up soon