STD test

I need to go get an std test done. I don’t have any symptoms but my boyfriend gets cold sores on his lips and he’s started getting them after he eats me out (I was clean before him and he’s a virgin so I’m not worried about anything else). I just need some encouragement. I’m scared to as my mom for the insurance card so I can go and if I don’t ask she’ll ask why I was there Bc she tracks me. I’m just scared.