Problems with an adult male cat being aggressive towards a 9mo female kitten.

We currently have four cats. They are as follows:
Adult male intact (Toby), adult female intact (Patches), 9mo female fixed (Jazz) and 9mo male fixed (Tager). (Note: These are all outdoor cats on an acreage)

Jazz and Tager are Patches’ kittens from a previous litter and Toby has recently impregnated Patches. Toby is NOT the father of the two current kittens.

Okay, I’m sorry if my information is a little all over but here it goes:

Yesterday, Patches gave birth to a still-born kitten (only gave birth to one yet she was large enough to have been at least 4–5). She seemed very distraught and continued to carry around the deceased kitten. After awhile we decided to remove the dead kitten from her and dispose of it safely.

We are 99% sure that Toby is the father of this new “potential” litter of kittens. Ever since the still-born yesterday Toby has been acting odd.

Toby has been trying to scare and push Jazz away, yet he has no interest in Tager what so ever. He has been growling and chasing her away from Patches.

We have Patches, Jazz and Tager all safely separated from Toby till we are sure that he is not intending to harm any of them.

I’m sorry if this doesn’t make much sense :\ We are all so worried :( Patches has a vet appointment Saturday (May 8) so she will be fully checked out regarding the possible other kittens and a check-up to make sure she is okay.

If you need anymore information please ask me.

We love them all very much and want to keep everyone safe and happy.

Thanks in advance for any and all responses!!

Note: We will be contacting the vet in the morning regarding this issue, but are also eager to hear about any ideas or personal experiences/responses :)