Me and my gf have sex maybe about 7 times a day, is this okay?

For more info we are 19m & 19f, been dating since we were 15, and our sex time does not impact anything else. Is that much sex okay? I feel fine as always and shes always limping from it ofc but i am just wondering is that much sex okay to have with your partner, we are yound and have been wanting this for years but i am truly stuck in my own mind of is this okay or not