Hi, Welcome to HCM, i am Dr. Das
It is confirmed that you both are not primarily infertile as you have a child.
Have you tried for child by doing regular intercourse for one year?
If not, then wait. First go for natural method by doing intercourse during 10-18 days in a menstrual cycle counting the day of first bleeding as day one.
If the natural method fails then there may be secondary infertility
which needs a thorough work up.
So, it is better to wait for some month and keep trying.