Don't know where I am

Pip • Pregnant with a little boy • c-section is booked for 4th July 2016 at 8am ✨
I've have two periods this month so I don't know when I'm due on. My boobs are hurting and keep having sharp tummy aches. I took a pregnancy test and it's negative and I took an ovulation test and that's negative.. What shall I do? 
Pregnancy test