Sick as a dog

So I’m super sick. My period is also a day late but I’ve gotten big fat negatives. I know it still could just be too soon to get a positive though, but I want to take over the counter meds to try and feel better. How ever of course a lot of them say not to if you’re pregnant. So what do I do?! Risk it and do it anyway? Or just continue suffering lol. Can I go to the doctor and get a blood pregnancy test rather than urine?