I need help and to know I'm not alone :(

I came off BC in sept. Been TTC #2. First month off I had a period. Second month I spotted for two weeks straight. Went to the doctor and they prescribed progesterone to reboot my periods. Had a heavy 7 day period at the end of that. The next month my period came on time. This month... I think my period is coming a week early. I don't know what to do. It's been four months. I thought the progesterone would normalize everything. The last two days I've had brown/pinkdischarge with dull cramps and a headache. Some people say it could be IB. I just don't think it is because it's not common and I'm in tears. I just wish my body would normalize. I want to know I at least have the ability to conceive again. I used opks the first two months but after feeling like I haven't gotten a real positive OPK I stopped using them. It made me feel like I was obsessing. So last month and this month I have not used them. Should I go to the doctor ? Is there anything they can even do yet to help me?i don't want to go and just here the words "it'll happen just give it more time". I want to know what the hell is going on with my body. My first pregnancy I got pregnant within one week of stopping BC. Why is it so hard the second time? And advice, positivity or anything is appreciated. Is there anyone out there like me?