Hi guys, I have a question about my russian tortoise egg and I really didnt know where else to turn to for help. I’ve had it for about 10 weeks now, I’ve given it proper incubation But I have no idea whether its fertilized or not. It started off with a thick vein like thing down the middle which I thought was a good sign but has now developed white circles and a large black spot. Can someone please tell me what this means? I dont want to make any decisions u til I know if its ok. I’ll attach a pic thank you!