Could I be pregnant?

I came off the implant on the 12th of September, on the same week I had a 5 day bleeding which is what I thought was a period but looks like it was withdrawn bleeding from the implant. I then had my AF on the 25th Oct but not sure when my next AF will be ( just going by Glow ). Me & my partner dtd on the 31st Oct and I have had a 2 week cramping since then headaches, backaches and my foot has been swollen. Could I be pregnant?