what are your thoughts ?

This is not a 'oh my god I think I'm pregnant help post' but I'm wondering what's going on with my body. My boyfriend and I have unprotected sex (I know it can cause pregnancy once again) but for almost two weeks now I'm having cramps in my lower stomach , as well as bad bad cramps and it sort of feels like gas cramps ? I'm constipated , I get dizzy every time I sit up , if I don't eat I feel sick but when I do eat I still feel weird. Here's a picture from my other <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period app</a> , the hearts are when we had sex , the light purple dots are my fertile days and the dark purple dot is my ovulation day. Tell me what you guys think? If my period doesn't come wensday I'll be taking a test.