Pregnant or Not?

I recently just got off mirena, and my doc put me on the pill. But here lately I just feel weird. I have a weird taste in my mouth and I just feel weird....not I had a period after my mirna got taken out and I stated my pills that Sunday while on my period. My period was over on Wednesday and we had sex that Friday and Saturday but can't really remember. So in all I wasn't on my pill a whole week before we started having unprotected sex. My boobs aren't hurting and but I have been super nauseous even threw up on Valentine's Day. 😑 and I even have a funny taste in my mouth. So I'm wondering should I stop taking my pill because I might be or is it just the hormones from the pills.