Think I might be pregnant..

Please, please, someone give me your opinion. I’m thinking I might be pregnant. I am on the pill, but starting taking antibiotics which the pharmacist told me can interfere with the birth control. I had unprotected sex only once during that time. I’m feeling more tired than usual, getting headaches, peeing more often, aversions to some foods, cravings, and most noticable, my period was a few days late, and when it did come I was just spotting. I don’t know what to think. All the symtomes are pretty mild so far. I kind of want to take a test but kind of want to wait and see if I get my next period. I don’t know what to do. Does it even sound like I’m pregnant?