Symptoms??

Ok so with my last pregnancy (although it was very short) I have extremely tender breast and the need to pee like every half hour and felt exhausted the week before I got my bfp. Since having the miscarriage I have had one symptom or the other never together..... but this time only one breast hurts (odd I know) I guess my question is are symptoms the same each time or do they change? There’s 8 days til AF is due so it’s too early to test but I’m wondering if they are symptoms or just a result of stress and the impending arrival of AF ....... any suggestions welcome :)