Pregnant again????

Hey guys so I’ll make it quick

I’m on the second missed period

My test say negative

I’ve gotten nauseous a bit but not as much as my first pregnancy

My periods are always regular

Even after the baby in November by Jan my period was back

I had sex June 16 a few days before fertile window, condom and breastfeeding still and all

Important factors:

I have been stressed lately but I’ve been stressed all my life and never missed one

I lost an immense amount of weight by accident due to depression (which I really thought this was with the first missed period)

I am still breastfeeding

What do y’all think? I don’t think I am, but I don’t know why I would miss 2 periods

And I definitely feel similar to the first time