No withdrawal bleeding and AF is late

Hi lovely ladies! I have a question and am really confused and definitely don’t want to google my symptoms anymore. My last period ended on Dec 25th and I came off my birth control pills on Dec 27th(after 2.5 years). Since then I never had withdrawal bleeding but did get couple of positive opk did bd and had twinging and pulling sensation for 3-4 days after ovulation day(Jan 6th). And now I do have visible veins around my breasts one breast is sore than other and little cramps and mild headache(which was one of early signs in my 1st pregnancy). AF was suppose to start yesterday but no show and no AF symptoms whatsoever. Took 2 pregnancy test yesterday and today both were BFN. We are trying for baby#2. Do you guys think I could be pregnant or it’s just in my head.

TIA