Possible pregnancy or just stress and anxiety?

So my last period only lasted like 5 days, I normally last well over a week, and was mainly old brown blood with a little bit of fresh blood.

I did last have unprotected sex at the start/middle of February. And due to lockdown can’t go out and get a test but panicking about being pregnant.

Should I be worried or do we think I’m all safe and shouldn’t worry?

I’ve been getting weird stomach pains and have been tired but sometimes I get tired when I’m not doing anything, and with this lockdown all I seem to do is eat and sleep😫😂 but cause I have nothing to do I’m spiralling into a big pool of anxiety and worry😂