Help please!

Felicia • It Works Global Distributor
I believe I ovulated last Saturday or Sunday. I took a OPK on Friday and it was dark but not as dark as it could be. Saturday and Sunday I wasn't able to test. Monday it was light. 
THIS WEEK though! Omg. Something is wrong with me. I have been extremely moody and easily irritated, I've had light pinkish color on the toilet paper when I went pee for a few days and just all around emotional. I've had a crampy/bloated feeling in my lower abdomen area. I'm never like this and my boyfriend hasn't been feeling good the last few days and I feel terrible for arguing with him. I have felt like he isn't giving me enough attention or affection this week compared to last week. Idk. I don't talk to my family or friends about anything but can someone please tell me I'm not the only one that has felt this way. 
Obviously it's too early to take a pregnancy test but wtf. Why am I moody like this? I don't want to push my boyfriend away. I have no excuse at all to be like this. 
Has anyone felt this way and then found out they were pregnant?