So I have had for the past 5 days swollen gums, really sore everytime I brush my teeth or eat something. I'm currently 3 days late and haven't tested. Wondering if

1. Is this a sign of early pregnancy?

2. Should I take a test or wait another few days?

Haven't been stressed, nothing in my diet or anything has changed.

My other question is can you be pregnant and not have any implantation bleeding?