Cycle

So my menstrual cycle was supposed to come on the 20th of this month and I still haven’t had my cycle , I’m not even spotting.... could I possibly be pregnant? I haven’t taken a test I wanted to wait tell Saturday to take a test , it would be a week on Saturday not having my cycle. My boobs are a little sore not horrible, nipples a little sensitive, sleep not much, no spotting. Any ideas on what I should do or think about this I’d appreciate any of your thoughts! Have a great day