Does it sound like a possibility in pregnant??

Just started trying with my SO. Wev tried so far for only about a week and a half now. We are using pre seed everytime we have sex. And for the past week I have a heartburn feeling in my upper back I have crampin pains all around my uterus area and goes up to my belly button area and that's it. It's suchlike unbearable feeling and also I'm bloated a lot I had lunch today and 6 hours later I was still bloated and also my lower stomach is getting hard. I took a test today but came out negative I know it's super early for a test so I'm going to try again in 2 weeks and my period was 2 weeks ago so this has nothing to do with my period. Is this a sign I could have conceived already?! Leave comments on what you guys think or some advice!!

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