Am I pregnant

So lately my body has felt very off and not like itself at all. I’m constantly bloated, constipated, more nauseous than usual and I’ve missed my period. I took a pregnancy test last week and it was negative but maybe I took it too early. I’ve been getting weird pains under my stomach and need to go to the doctor to check that out but should I ask him for a pregnancy test or just buy one. I’ve never been pregnant before and don’t know the signs so if anyone could help that would be great 👍🏻 I would actually be very happy if I found out I was pregnant, I haven’t been planning it might have just happened.