Timber wolf pregnant without a male present.

[Snowfire]

As the title says i have 5 timber wolves, 4 females and 1 male.
The male timber wolf i have placed into a Cryptosleep casket to make sure i don't get more of them but still want one around for when i need more due to losses or old age.

Here is the weird part, i just got a message that one of the timber wolves is now pregnant which is impossible as there are no males around.
Unless a labrador can mate with a timber wolf but after reading the wiki and forum discussions this should also be impossible.
Anyone have an idea ? because this is annoying, i don't want any pregnancies unless i need one to replace an animal.

[=)]

Pregnancy status isnt immediately visible. Possible he did it days before

[Snowfire]

i know about the status but it's been awhile since i placed it into the cryptosleep casket, oh well i guess it must be that, i forgot how long ago i placed it in the casket.
thx for answering :)

[Yaldabaoth]

Don't be surprised if 3 wolf kings bringing you gold, frankincense and myrrh wander in from the east soon. Just sayin'.

[Snowfire]

All are welcome at my colony, everyone receives a warm welcome if not by my colonists it will be by my turrets :)

[Astasia]

Gestation period for a timber wolf is 26 days, you get the notification at the 33% point which would be nearly 9 days in this case.

[Snowfire]

I guess i must have placed the male into the casket less then 9 days before i got the message.
Oh well, i will sell the wolf if it's a male to a merchant :)