Could I be??

I haven’t been taking my birth control now for about 4 months, so this would be the 5th one and I thought I had the counting thing down so I wouldn’t become pregnant. I stopped taking it because I wasn’t seeing my boyfriend as much blah blah blah. Well come to find out I was doing the counting thing all wrong and did the dirty 3 and 4 days before I ovulated. I never really payed much attention to things. Now I’m tired, my bb feel more heavy and full (I also had a burning feeling), I had cramps for about 3 dpo, have a sore back, and for the 1st time ever had to wake up in the middle of the night to go to the restroom. Are these even possible signs and could I be pregnant?