What is going on? Contractions? Braxton?

Samantha • I have a son, 👩‍👦Karter, who is 1.5yrs old. He is my life! 💝 & I also have a daughter who is my little Angel from above, 👼🏼Kassidy, who would be 3yrs old now 💕
I'm a FTM. Had a doc app this morning. Since I woke up I have had pain in my lower abdomen. Feels like period cramps. It's not a constant pain, it keeps goin away and coming back. I wrote down every time it would come and it happened 11 times in an hour. They last a few seconds. Like 15 seconds give or take, maybe a little longer. Doc said if I start bleeding, having fluid, or if the pain gets worse or anything then go to hospital. (Btw Doc did not check me, no pelvic exam or anything) I want to know what it is.. Even when I cough it hurts my muscles right there really bad. I just don't know because it won't stop and it does hurt and very uncomfortable. Also I do have lower back pain. I could literally go in and pee and I would start my period is exactly what it feels like, besides the fact the pain goes away and keeps coming back. What is going on!? When will it stop, I really just want to cry I can't take it!
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I just seen this since the day I posted it, I am 6 weeks pp now but I ended up going to labor and delivery that night, they put a thing on my stomach and I had been having real contractions all that day! Even when I was at my doc app that morning! So a doc came in and checked me n I was already 6 cm dilated so I gave birth that night!
I was def not expecting that... For sure! And the day I got released MY doc came in and actually apologized to me for not checking me that morning.. Hah. Just figured I would share what happened during that day I posted this. Good luck ladies