Probably not, but early pregnancy sign?

We’ve ran out of tests so my OH is going to grab me some tomorrow. We’ve been TTC about 3 months for baby number 2.

I stopped breastfeeding baby number 1 about 6 months ago (she self weaned) and had pretty much dried up after about 3 months, out of curiosity I tried to express a couple of times but nothing would happen.

I was working earlier and felt a weird bubbling feeling in my boobs and then they’ve felt heavy all afternoon. Tried to hand express to see if it might be milk related and to my surprise there was quite a bit of thick creamy type milk.

It could totally be a hormonal thing I know but because I don’t have regular monthly periods I know I won’t come on any time soon (my periods were the same 1st time around it was just pot luck I took a test because “sore” boobs were my first symptom that time but then they are also sore when I’m due on too yay).

Has anyone else experienced similar after having a baby to find out they were pregnant again? 😊