Can't handle it

I have been ttcing for 3 yrs. I was due for AF Jan 7 it's now Jan 10 and I took a test being late and it was Neg now I'm having light pink bleeded that started last night but it's still light today. I'm thinking implatailon bleeded because this is not my full flow. We had sex last night and normally that make my period worse but this did nothing at all still light pink with a few mucus clots. Help! How long should I wait befor testing again?