Am i pregnant or was this the stomach flu?? Still no period!?

Ok Ill start by saying I had my last period the first week of April. I believe it ended April 8th! Me & my bf (of 4 yrs) did have unprotected on the 10th and all thru the rest of april..A couple times I would get some serious headaches when i woke up.. Then on the last week of april I had a serious headache that turned into the stomach flu! I think? Ive never had the stomach before so i honestly dont know what you experience.. But I was sick for 6 days straight! I had diarrhea so bad and when i ate anything Id b in the bathroom within 2 mins! It was so stressful and the worse thing ever! Now I have yet to come on my period :/ I am bloated and I havent had any type of cramping until yesterday morning & I felt so uncomfortable and nauseous feeling! I want to take a test but dont want to waste my money if im bound to start my period! We've been trying for a baby for the past yr and NO LUCK :( So I want to be excited!! So any input on what im going thru would help! Pregnant? And if not wheres my period?! Also I hear from my friends that have had babies say that u dream crazy dreams when ur pergnant! I jus had one that i delivered a baby girl..it felt so real! And a week b4 my bf had a dream that we had a baby girl! Im not superstitious but its WEIRD! Thanks for any HELP!