Help??

My period is 23 days late. I don’t think I could be pregnant my boyfriend and I haven’t had sex recently and the only thing I can think of that could cause me to be pregnant is me giving him a hj and then me using the bathroom like 2 hours later? I don’t think that could have happened but it’s possible i guess. I took a test at about 10 days late and it was negative. I guess the question I’m asking is why it’s so late it if anyone knows of a way to make it come? Thanks you❤️