Ob-Gyn questions? Ask a gynecologist online.
pregnancy tests are quite reliable from 14-16 days after sexual contact on, when they are performed with morning-urine. Symptoms like you describe can be caused by stress or hormonal imbalance, so I don´t believe in pregnancy in your case. A blood test done by OB/GYN can reassure you additionally.
Dr. N. Scheufele
if there are still open questions, I will be glad to answer them.Otherwise please don´t forget to honour my work with a kindly rating.
Thanks a lot, all the best for you,