Help me dased and confused

♡Alexa♡
So I have just had my iud taken out a few weeks ago and now I've had some symptoms sore breasts weird cravings mood swings nausea now I've had light brown bleeding that lightened and turned light pink called my Dr and they said it could possibly be implantion bleeding to go about my days until my appointment in three weeks like I'm pregnant my period is in 13 days is it to soon to test or should I get a test if so what brand?