TTC questions, advice, help

Hey ladies! So, im not exactly sure what has been going on with me lately. To make a long story short thanks to the depot shot I wasnt having a period for about 2 years. I was on it shortly after my daughter was born. Born 10/24/17 and started 12/2017 on depo. In July of 2019 I quit taking it because my partner and I had talked about maybe trying for one of our own (kids step dad) and giving the kids a little brother or sister. I was having some issues with pain when it was discovered I had a cyst on my right over that would enlarge and then rupture. I was scheduled to have a lapriscopic cystectomy done 8/17/20 and when the dr had went in to remove it, it wasn't there 🤔😮 so he informed me he had poked a few pin holes to keep the cyst from coming back and I have since then not had an issue. In October 2020 I went back to the dr to get a little push with starting my period so I could ovulate so he prescribed estrogen, progesterone, and letrizole. I bled 1 day during this process and it was very light. Nothing ever really came of it so we just gave up and decided my body would fix itself eventually. Fast forward to March 7, 2021 I finally got my period! Its been pretty consistent since except in April I had 2 periods with a one week break in between. May, I had a period. June I had a period. Now its July and my period is 4 days late. I did wake up this morning with brown watery liquid in my undies which is weird bc usually the brown discharge before my period is creamy and I usually get it all day and then start bleeding. However, this morning the brown watery discharge was mixed with a deep red. Like dark dark red. No clotting, no cramping, nothing with it. Im not sure what to think of all this? 🥺 I've been taking pregnancy tests almost daily between last month and now but I kept coming up negative except for one clear blue test that was positive this past week. Can anyone help me understand whats happening? Is this a period? Miscarriage? Can you still have a period and be pregnant? I dont understand whats happening🥺 I had all the symptoms of pregnancy restless legs, fatigue, insomnia, constipation, funky appetite, moodiness, nausea, lower back aches, etc. Im about to a point of giving up. Including a picture of the TP when I wiped.