Should I take another one?

My period was due yesterday and hasn’t started yet. I’m usually very regular. I came off birth control (because of bad side effects) about 10 months ago. It was weird for the first 3 months and has been back to normal since until now. I took a pregnancy test today and Im pretty sure it was negative (my eyes kept seeing a faint line and then it would disappear? Pretty sure it was anxiety induced). It was not fmu. Does fmu make a big enough difference that I should try again in the morning?

Also no need for a birth control/condom lecture. We have two kids already, we’re stable, it wouldn’t be a huge change like a baby can be to some. We already know we want a third we just haven’t actually decided to try yet