Clomid 25mg+ Already Ovulate On My Own

I ovulate on my own. I've had testing done and doctor says everything is normal. But since we've tried to conceive for 15 cycles for our third child, my doctor prescribed me 25mg of Clomid days 5-9 of my cycle. (I had to cut 50mg pills in half). I'm just wondering if anyone else ovulated on their own and took such a small dose of Clomid and got pregnant quickly. I am reading through posts on here and it seems most people didn't get pregnant until their dosage was increased to 100mg. And I'll never be able to get that since he doesn't want to risk triplets or more. So I'm really worried that this won't work for me. I'm on CD10 now. So it's my first day after finishing the pills.