I had sex with my boyfriend multiple times in the last few weeks, we checked the condom every single time and it never broke once. My period was due on the 9th and it still hasn’t appeared, I’ve been under a lot of stress in the last 2 weeks due to nasty messages from an unknown number, could I be pregnant or is it stress related?

These are not the only messages I’ve received in the last 2 months. Jess is my 12 year old sister and Brian is my grandad that passed away 1 1/2 years ago. So could my period being late be related to stress?