Terrible Stomach Pain

I am refreshed after 7-10 hours of sleep and I woke up this morning in very good mode. Then, I ate my breakfast while I checked my mails. After an hour I feel like there's little bit of pain in my stomach and it feels like there's many butterflies in my stomach, it's weird feeling. I know that I am expecting my monthly period this month but I am not expecting the pain. I'm still talking to my friend online when that happen and suddenly I felt dizzy, I feel pain in my lower pelvic. It's very terrible feeling so I told my friend to talk to her later. I lay down on our bed for few minutes but the terrible pain did not leave me and I vomit not a good word. I can see my face in the mirror that it is pale and thinking what I'm gonna do when I pass out when I am alone in the house. I prayed silently that God will help me and even I'm not feeling good I tried to walk in the middle room to get my cellphone in case something happen I can call my husband. But the pain became worse that I can't even walk straight and I decided to take 500mg ibuprofen to help ease the pain. I'm glad that I did take the medicine and I just woke up from my sleep. I did not know that I fall asleep for 4-5 hours and when I wake up I feel good. Thanks God for letting me sleep so I can not feel the surprise pain.