Стоит ли мне принять еще одну таблетку экстренной контрацепции сейчас?

If you're experiencing pregnancy symptoms, then it's best to take a pregnancy test at home or a blood test to confirm.

I would recommend you make an appointment with an ob-gyn who focuses on the female reproductive system health and fertility disorders. Tubes blocked, lining thickened and cysts are some of the conditions that are indicated by fallopian tube dilation such as endometriosis, pelvic inflammatory disease, or hydrosalpinx. 

It’s good that you’ve been taking pregnancy tests but they may not always detect pregnancy at its early stages. There could be many things that may make you feel something strange in your abdomen. The ball and beat feeling could be connected with muscles or other organs. Late or irregular periods can also be caused by many different reasons. You need to have a scan done so that you can know what is happening. 

Pre­gnancy risk is present if sperm e­nters the vagina. Although chances are­ reduced without intercourse­, it remains possible. Signs indicating pregnancy include­ missed periods, nausea, tire­dness, and sore breasts. A pre­gnancy test provides confirmation. Moving forward, condoms offer crucial prote­ction against unintended pregnancie­s and sexually transmitted infections.

It's probably a sign of implantation bleeding, which occurs when a fertilized egg attaches itself to the uterine lining. To get the most accurate results, it is recommended to wait until about a week after your missed period to take a pregnancy test. 

Most women do not get pregnant if they have sex 3 days after ovulation, but unfortunately, it's not impossible. Chronic alcohol consumption may contribute to a deficiency in the reproductive process and marital relations result in a baby's impairment. Mind the symptoms and take a test to be sure. Besides, take the test after you miss your period to know for certain.