The GloFish will have a bloated look and will be fat. If you compare it with the other GloFish , you can usually tell the difference. I'm not sure right now, as my GloFish is also pregnant.
Your Oscar can not get pregnant. It is an egg layer. It will not be adult or mature until it is around 6 inches long.
14 days after intercourse.
Danios are egg layers and can not get pregnant.
You wouldn't ever be able to tell this, because carp fish do not get pregnant. Pregnancy implies carrying the young internally, which carp do not do.
I want to get pregnant? My doctor said to take prenatal vitamins
sometimes you can tell but you can be on your period and still be pregnant
you can tell that your sea monkey is pregnant when she has a little egg sack on her back but it will take a year before she does get pregnant ( it will take 50 weeks to hatch if pregnant )
Goldfish of any type are all egg laying fish which means that they do not get pregnant
With a guppy you need to look at the gravid spot. This is a dark spot in the fish's belly. A large gravid spot indicates the fish is likely to be pregnant. You can tell how pregnant the fish is by how large the spot is. Sorry I have no experience with other species.
Goldfish use external fertilization to reproduce so pregnancy in a goldfish is impossible.
you tell me
only a couple of days after your missed period