Just had a thought about when I was 38 weeks pregnant . I was messing around with my flat belly button , when it popped out slightly .
I then noticed it had a scab at the end of it , and i love to pick things and squeeze pimples so I picked and squeezed it and to my amazement a thick black head popped out .
Why would I have a black head there lol !
When I had my next pregnancy i noticed the blackhead hadn't come back.