What are the odds or chances of my gf being pregnant?

[EvenSanders514]

My gf and I had unprotected sex on sept 30 and oct 1. It was her "safe days". Then we had sex again on oct 5, but this time with condom (I'm sure the condom didn't break or tear) and on oct 8 or 10, we assumed she had ovulated. After when she had, she already started felt cravings, mood swings and had acne. Oct 10-14 was a busy week, she would sleep light and she had a fight with her mom. Furthermore, being stressed by her professor. However she was supposed to be due on oct 19th but no period came, she felt tired and sleepy and fell asleep that afternoon. (She is regular, but she was also late the past month) Oct 20th she started feeling bloated and cramps. Oct 21st she felt bloated and some cramps when I asked her. Oct 22nd She still felt bloated and cramps and felt like her period was "stuck". She would often check because she was feeling wet and thought it was her period. Oct 23rd, right now, still no period but the cramps and the bloatedness have gone. We slept late last night about 3am and woke up around 10am. She has lost her appetite today and is feeling tired. She is currently 4 days late, going 5 tomorrow. What are the odds of her being pregnant? I'm getting paranoid, please answer ASAP, thanks. It will be much appreciated.