Implementation dip/s?

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I know that I’m pregnant I had my first positive test a couple of weeks ago. I had one pretty early based off my temp for ovulation, I’ve been nauseous and extremely sore breasts starting at 4 weeks my other babies was 7 weeks and 6 weeks before I didn’t feel good and I am 5 weeks yesterday I took a test just because and the control line was basically non existent the positive was so strong, looking back at my temps there looks like there are 2 dips after ovulation is that normal? Could or does it mean twins?