So tired of not knowing

Kate

Hi all... So bit of background, I had a CP in Jan of 17 with my ex of 14 years... We had been planning but then after finding out about him cheating repeatedly I ended it. Now seeing a new guy... There was a whole thing I had been seeing him from july/August up until October and then kinda became a bitch (he was mildly annoying there was no need for me to go off like that but I did so let's move on) So were now in July and I'm seeing him again since last month. AF was due on the 3rd July we had sex on the 26th of June I was supposed to ovulate (going by the app) on the 19th June and so should have been outside of my fertile window... We got caught up and he finished inside no condom which if I ovulated when the app said wouldn't be an issue (significantly lower chances of getting pregnant at that time)... Now the app has never failed me I've always been maybe even a day later for AF but nothing worse, and now I'm 19 dpo so 5 days late and thinking if I ovulated late this cycle I could very well be pregnant but now with the delay I'm testing too early? I've had 5 BFNs so far and it's just so annoying not knowing... I think he'd be ok if I was he's a good guy, maybe a bit shocked but by this stage we both just wanna know one way or another for sure. I had cramping on the 2nd July almost like my AF was coming and felt very faint for about 10 minutes yesterday, been having heartburn a lot which is weird for me and more tired than usual, also going to the toilet like every hour... I am testing with FMU but like I said nothing and no sign of AF... What should I do?