Racking my brain...

Amy

Hi, just want to see if anyone can help.. So I came off pill in July and had odd length periods, going from 33 days, 42 days, 28days, 31days, so I have got more of a pattern now with my periods, I was meant to come on Friday just gone and havnt my boobs are very painful and have grown and very vainy, I also have belly pain on and off. Could I be pregnant?