Welcome to HCM
It is good to have regular periods.
Follicle count as well as follicle size of growing follicle is important along with time of rupture of follicle that is ovulation is deciding factor for success of pregnancy
At the time of ovulation that is day 14 of the cycle dominant follicle should be 18-20mm is ideal .
Even a little vaginal infection
can be a cause that you are not got pregnant.
Yes there is chances of improvement ,have ovulation induction
drug like clomiphene
citrate in minimum doses starting from 5th day of cycle for 5 days ,start follicular monitoring from day8th , till ovulation occur will improve your chances of conception.
you should consult infertility specialist
for this .
You got the suggestion for your quary .
Any further suggestion you are most welcome.