Explanatination: Usally its a bad idea because the way credit works is while it doesnt take money directly out of your bank account that money gets put on a tab basically and you will eventually have to of that tab and if you cant thats when you go into debt because you owe the bank that money.
Best way to to get tested is at a clinic
If the other person cheated on u
If the other person keeps lying about where he/she has been
Basically if their not loyal to u