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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. 

Urinary tract infections often occur when bacteria enter the bladder and vagina. You might feel pain when peeing, experience lower belly pain, and have the urge to pee frequently. It's important to drink plenty of water and avoid holding in your pee. Sometimes, antibiotics are needed to help treat the infection.

Two periods missing during two months can be the sign of pregnancy or hormonal disorder. You should take a pregnancy test and go to see the gynecologist for further analysis. Gynecologist can give appropriate diagnosis and management related to menstrual irregularities.

Based on what you've told me, the chances of you being pregnant are slim. The emergency contraceptive pill is effective if taken shortly after unprotected sex. Women can experience nausea and abdominal discomfort as side effects of the pill, which do not necessarily imply that they are pregnant.

A period that's unusual could be­ implantation bleeding. This occurs when a fe­rtilized egg attaches to your ute­rus lining. You may experience­ light spotting, cramps, and period changes. Try taking a pregnancy te­st to confirm.