period??

so i had sex twice this month, once he pulled out & used a condom & the second time he didn’t use a condom but we didn’t even finish. i am on birth control and i just took the first sugar pill last night but i usually start on my 3rd or 4th. i woke up with cramps and i’m not sure if they’re period cramps or not, it just seems weird to me. i also have really bad gas. is that weird? i spotted just a little bit and then it stopped?