I am at day 24 of my cycle and I have really sore, tender breasts. I have been pregnant before and this was the first symptom that I had then. What is the first date that I can test? Are there early detection detection tests that I can buy in the chemist or are they really expensive? My cycle is usually 28 - 30 days so guess I may just have to wait but patience is a virtue I have never really possessed!!