Hi there, I have understood your concern. I will suggest you the best possible treatment options.
1 ) First of all do not panic.
2 ) As you have mentioned that you had unprotected sex act in the fertile period of cycle, then you stand chance to get pregnant.
3 ) But it will be too early to expect
pregnancy and symptoms of pregnancy.
I will suggest you to wait till your expected date of the cycle. If you happen to cross your dates, then please get morning's first sample of urine tested for pregnancy.
In case of doubt blood
beta HCG test and USG will be of help.
4 ) If you are trying for pregnancy, please start taking
Folic acid, Vitamin B 12 and Omega 3 supplements on daily basis at least 3 months before you plan to get pregnant. This helps to prevent various complications during the pregnancy and baby's growth and delivery.
I hope this answer helps you.
Thanks.
Dr. Purushottam Neurgaonkar.