Help - Is my goat pregnant?

Just recently purchased two pygmy goats one male one female. The male was fixed at 3 months old. They are now 9 months old. I believe counting towards already pregnant but I'm not sure. I see what might be a mucus plug but reading around on the internet I see it could also mean she's in heat. Looking for any kind of advice

Welcome, Janine from another Pratt!

I have no idea about your goats, but I flagged this thread to try to get it some attention.  Best of luck!

They're a bit variable but goats on heat usually display behaviour changes like yelling their head off to attract a male...  The male kid was likely "capable" at 3 months (they're promiscuous) but the female would've had to be on heat - which, for most goats happens in fall through early spring on a 3-week cycle, ish.  However, if the male was "fixed" at 3 months and now they're 9 months, well their pregnancy lasts about 5 months, so the figures don't add up.  I don't know whether pygmy goats have any variation on when during the year they could be on heat, seems a tad early to me, but we never kept that breeed.

We used to breed goats and it's quite possible for a kid to give birth shortly before they're 1 year old, but that's kinda frowned on for responsible breeding.

Did the person you bought them from have any other male goats? If so, then she could have been mated relatively recently.

Thank you Ann for adding me to thread, and the welcoming intro.
I do believe she was in with other pygmy goats before coming to us.
I've also been in touch with the previous owner. And he confirms this. I've been in touch with our vet, unfortunately she cannot make a house call for 2 weeks. And if she's pregnant I'm not sure she'll wait that long. This is our first time as I said, and I'm learning as I go.

Could we see a photo from the side and from above? That might give us more of a clue.