Opinions???

I stopped birth control after my last period. I’m in my first cycle of being off the pill. If my cycle stayed on the regular 28 days cycle, I should have gotten my period on 1/1. My husband and I had sex on 12/11, 12/16, & 12/22 where he finished in me. Thoughts on if could be pregnant or not? I took a blue dye test on Saturday night and Sunday morning. Both showing negative. Looked at the one after the time frame to look and there was a faint second line. So not sure if that was an evap line then. Opinions appreciated!