I've been tired and in pain all over sudden weight gain tender breasts growing of the stomach no sign of my cycle yet could i be pregnant with a tubal?

Check for pregnancy.: I would definitely suggest that you check for pregnancy. Get tested and if negative try to get an appointment with your GYN provider in order to evaluated for other causes which could include hormonal issues or structural, meaning possible cysts, masses, etc in your reproductive organs. If you are having significant pelvic pain associated try to make sure you get seen ASAP.

Do a pregnancy test: If your pregnancy test is negative then you don't have to be concerned with an ectopic pregnancy.