Worrying about pregnancy excessive.

Hello. I have my periods every month. They are usually between 28-32 days. I am not able to take birth control but most of the time i use a spermicide or condom. I find myself worrying every month when my period is nearing. Its awful. I am currently 5 days from my period and keep googling pregnancy symptoms and cervix positions. I am literally draoning myself every month and then my. Period starts. I make myself have symptoms of pregnancy and everything up until then.. Like boob soreness or cramps. Does anyone else do this?? What is wrong with me. Ugh.