Hi Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern...
For a woman to conceive, certain things have to happen. Intercourse must take place around the time when an egg is released from her ovary known as ovulation.
Ovulation normally happens around 14 days from 1st day of menstrual bleeding. You should try to have sex with your partner 12- 18 days from 1st day of menstrual bleeding.
There might be some male reasons in your inability to conceive.
The main cause of
male infertility is low semen quality &
low sperm count due to endocrine problems, drugs,
radiation, or infection. There may be testicular malformations,
hormone imbalance, or blockage of the man's duct system.
So you should visit your gynaecologist, if problem persist
Don't worry you would be fine
Hoping your query is solved.