Hi and welcome to HCM..
I am really sorry to hear this and I suggest you not to worry at all!!
I thank you for posting your query here and I'm definitely going to help you out..
I being a surgeon, we encounter so many such cases day in and day out..
I read your question completely and have understood it well enough..
I will analyze all your points and provide necessary explanation..
1. Sex for 1st time and used a condom.
That's great, please continue using condoms, it prevents
STD too..
2. Tear in condom but no ejaculation..
If your male partner is so sure that he did not ejaculate then, chill my friend. There's no chance you'll be pregnant..
3. I can say, with 100% certainty that you won't be pregnant..
Take it from me.
4. And periods after one or two days.
Then, it's self explanatory and 100% confirmed that you can not be pregnant.
Generally, ovulation occurs 14 days prior or after
menstruation cycle in 28 to 30 day cycle.
So, going by this logic, you should have ovulated 14 days before you had sex. And remember, ovum or egg can survive maximum for 2 to 3 days!!
Hence there was no ovum only to fertilize even if he had ejaculated entire semen inside your vagina.
5. So chill.. And do not worry..
Hope this helps you, and in case you need any further assistance, please let me know.
Take care and God bless you.