My husband and I had sex yesterday for the first time since finding out I’m pregnant.

Right after when I went to the toilet, there was light pink in the toilet and when I wiped, that subsided and then nothing until this afternoon, when I went to the toilet and there was a single drop of red blood on the side of the toilet (inside) and then when I wiped tiny amount of light pink.

I’ve attached a photo. Is it likely I’ve just irritated my cervix due to the sex?

I’ve had no blood on my underwear or in the toilet (apart from the single drop of red), and just when I wipe (but not every time) light pink.