Confused

I was suppose to come on my cycle on the 7th. It's 2 days late and I'm never late. I did inject sperm into me on the 3rd and 5th both days of which I was ovulating. I've been having cramps but no spotting nor cycle. I've been more tired, moody, irritable and using the bathroom more frequent than before. Are these signs that I can at any chance be pregnant??? Someone please help me!!!!!