Not sure if I might be pregnant

I’m on the combined pill and I have taken two packs in a row in order to miss my period. For the past two weeks I’ve been feeling off and weird. I’ve recently been feeling nauseas, fatigued, a little dizzy I’ve also had my nose really congested. My lower back has been killing me as well as a pain I my lower left abdomen. Also my thighs feel heavy and sore. Ive been feeling really thirsty hence my frequent bathroom visits and also I’ve been constipated. I’ve not being throwing up. I’m due to finish my pill this Thursday so would get my period this weekend. Should I wait and see or just do a test??