Worried

I had 2 miscarriages in 2018 and I received my bfp on Saturday for my rainbow. For the last couple days I’ve been feeling quite a bit of cramps. I’m supposed to be 5w4d. This morning I woke up with some very light brown spotting. TMI It was just a drop after wiping. Husband an I did have sex last night but I haven’t been spotting or bleeding at all afterwards. Even though I’m not bleeding or spotting very much it still is freaking me out especially the cramping! Can anyone tell me any success stories that had the same issues. I’m still having my pregnancy symptoms. I’m very nauseous all day and I’m having wicked heartburn and I’m EXTREMELY emotional and overly sensitive