I have a boyfriend that's 18 and I'm 15 he asked when I want to take it to he next level but I'm scared my mom might take me to the doctor for a virginity test

And depending on where you live, he could go to jail and be labeled as a sex offender for the rest of his life.

You are right to want to wait. Do not make him push this on you.

Are you prepared to be pregnant? Can you afford a baby?

Yes, girls get pregnant their first time.

If you were 15 year old daughter, you would not be dating, let alone an 18 year old. If I found out you were I'd do the same and he would be in trouble.
Sex is not a play thing. You could get pregnant, he could have sex with you today and dump you tomorrow. How long have you been dating the guy?

when to lose my virginity

You lose your virginity when you emotionally, physically, and financially capable of raising a child.

WAIT. I had it push on me, and I felt horrible afterwards. Don't let him push you. And if he does, tell him to back off and cool his jets down

You need to leave him alone. At his age, he should not be messing around with you,

Tell him you want to wait. Wait until you are ready for everything that comes with having sex. It is a really serious step with very serious consequences...

Wait until you are ready...