Question about early pregnancy?

I'm curious as to what it feels like to be pregnant early on probly between 8-12 weeks. I am on birth control and a few months ago had a miscarriage and now have had the same symptoms as when I was pregnant but it's lasting longer and a little different. I was 5 weeks when I had the miscarriage and I suspected I was pregnant but never got a positive test until I lost the baby. Now with the same thing and I don't know what's going on, my boobs are big and swollen and hurt all the time, I'm not even wearing a bra anymore and my stomach feels like there's a lot of pressure in my lower abdomen and sometimes I cramp. I sorta feel like I'm gonna start my period but I've felt like this for weeks and nothing. I've also never got a period after the miscarriage, I spotted a few times after sex about a month ago but it stopped within an hour and that was all. I need a new dr because every time I call they tell me it's impossible but it was also impossible for me to get pregnant at first and it happened. Just curious if being pregnant is possible again or if it's just things happening after miscarriage.
Question about early pregnancy?
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