HELP ME! Idk what to do?!

So September 13 I had unprotected sex with, man#1. And on September 24 & 25 I had unprotected sex with, man#2. My period is 8 days late as of 10/5/19. I haven’t had the money to get a pregnancy test yet but this past week I have had symptoms of: stomach cramps, severe lower back pain, nausea, headache, increase of urination, fatigue, having trouble sleeping. But the thing is I have a good feeling that I am pregnant but like with these pregnancy tracker apps if man#1 and I conceived the baby I’m 5 weeks and 4 days and if man#2 and I conceived the baby I’m 3 weeks and 3 days. But would I feel symptoms at 3 weeks???? I’m so confused on which to choose on apps and all. And going to the ob/gyn isn’t an option right now and I’m trying to save up money for a pregnancy test. And I constantly feel guilty and like terrible human help me. I have no support