I Think I Might Be Pregnant... The Other Morning I

I think I might be pregnant... The other morning I woke up feeling like I had to vomit and I shure enough thru up just stomach across and fell back to sleep it was 6 in the morning. If been having really bad lower back pain .took 2 test about 2 weeks ago and were negative. Checked my cp it's tillted twords my spin and firm and I believe it's closed because. The top on my finger won't go in it can just rest my finger on it and it fit in a dip type thing. I'm supposed to start tomorrow but have had only white mucus come out mind of thickens