Hi Ladies, I'm new to the forum and I have read every single post. I am so happy that I am not the only one with a lot of questions...

I have a few questions, which I am not too sure about, if anyone can give me some advise... I apologise if it is tmi...
Hubby and I only wanted to TTC in July, and from what I understand, you're chances of falling pregnant after you have ovulated is zero (that's what I read). I have a lot of Ovul apps and followed it to a T. I tracked my temperatures since beginning May as well as did Ovul tests almost every day and checking CM. I did a ClearBlue Ovul test on 17th May and it was positive (the very first positive I have ever received in all the tests I have done. So I dated my Ovul date as the 17th May.
I had unprotected sex with DH on 18th, 19th and 21st May. Following the Fertillity Friend app, I know noticed that the app says I have ovulated on 18th May!
Before I saw that I Ovulated on 18th, I have had some strange symptoms:
*moodiness,
*nausea about 2-4DPO,
*very gassy, feeling of fullness in abdomen (probably bloated??),
*headaches,
*cramps just after ovulation and then last night at 6DPO I had worse cramps during the night.
*I have had white, stretchy CM since ovulation,
*before ovul I had no appetite and no afterward my appetite increased.
*And I'm tired all the time (will fall asleep in front of the tv)
I know all these symptoms are probably normal and could be caused by stress etc.
But could these also perhaps mean that I might be pregnant?