Helpppp 4weeks!

Megan • Married💎Olivia 4/1/17• Baby #2 due in April•metformin.🌻
I had 3 faint positives 2 days ago. Since then I've had extreme fatigue and thirst, clumsiness, light nausea, restlessness, on and off tender breadt( not nipple) and pretty bad headaches. On top of that yesterday I was having period like cramps and it scared me. I'm not supposed to get my period until Monday so my dr won't give me a blood test until the 16th I went there for a urine but for whatever reason it wasn't picking up..I mean is this all common or should I be concerned?

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