My doctor didnt tell me about antibiotics cancelling my pill!

Ive been on the pill for over a yr because condoms irritate me. Well recently i had a rly bad sinus and respiratory in fection and i was given antibiotics. A week aftr i started them we had unprotected sex. I hadnt thought of anything cuz we always do since the condoms irritate me and its been that way for over a year with him. A couple days later my mom asked me how i was feeling and stuff and she mentioned if i knew the pill was cancelled out while taking antibiotics. I lied and said i did even though i really didnt. Me and my bf immediately went to the doctor to get plan b and this was 2 days aftr unprotected sex. The bad part is aftr the day we had sex i needed to start a new pack of pills but had no money so i had to wait till yesterday to get them. Now im starting to get dizzy sometimes and im getting constipation followed with diarrhea the next day. Ive looked online an realized those are signs of early pregnancy can i be pregnant?

It has been close to a week, so you should be able to use an at home test. If you are really worried, get a couple (at a $1 store) and use one now, and use one in a couple of days.

While it could happen, odds aren't in your favor to get pregnant, especially after using Plan B.

Have you tried latex free condoms? If it is the latex that bothers you, this would be a good alternative in the future.
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After using an antibiotic, it is a good idea to take a probiotic. Yogurt with live cultures is a good source of them. Antibiotics can kill off the natural bacteria in your digestive tract that you need. There is also a possibility that it can lead to an increased number of yeast infections. If you can eat yogurt, do so for a few days after you are done with the antibiotic. This also helps to support your natural immune function.