i had sex on the 18th of this month and am supposed to ovulate on the 23 we didnt use a condom and he did ejaculate my period isnt do to come until oct 7 but i have been feeling kind of weird lately could i be pregnant

Hi vickywilcom,
Thanks for your question and for finding EmpowHER.
As you know, anytime you have unprotected sex, you run the needless risk of getting pregnant. Birth control such as condoms, spermicide, birth control pills, etc. are only effective if you use it accurately. I know how it is to be caught up in the heat of the moment, I just would urge you to please try to be safer in the future.
Unfortunately, symptoms of a coming period are similar to pregnancy symptoms. It definitely would be too soon to tell if you are pregnant or not. If you end up missing your period, take a pregnancy test. Some doctors suggest waiting until 5 days after when you think your period should start. Try not to stress, it can do a number on your cycle.
Here is an article that may help answer more of your questions:
https://www.empowher.com/sex-amp-relationships/content/misconceptions-sex
Good luck!

i think so