BFP with very little / no symptoms?

Taylor • 24 - Married July 2015 - TTC for 54 months - PCOS -

Is it common to get a BFP with no symptoms? I have had a few shooting pains in my uterus area, been emotional, slightly tired and creamy CM. But no sore breast’s, nipples, or nausea (about 4 weeks pregnant currently) is this normal? I have PCOS if that matters