What next? Also, thank you all!

Hello beautiful ladies! First of all, I just wanted to thank you for contributing to this lovely community, looking back, here was the place I could share all my fears, impatience, anxiety and good news too. I do not feel lonely anymore when talking about infertility or TTC journey. Wanted to share my most recent story and also ask for some thoughts from those who have maybe experienced something similar. On the 29th of December I got my very first positive, even if it was vfl. Had been spotting for 5 days in a row with no positive tests so was expecting AF, absolutely no other symptoms except the classic PMS cramps, appetite, back ache and bloating. That morning a second line appeared and I got immediately excited but a bit anxious at the same time, something did not feel right...I was 16DPO, ovulation tracked with opk, went immediately to the OBGYN to have an ultrasound and blood tests. The echo has shown a 2 mm nondistinctive spot, but the blood tests showed very low progesterone and HCG...everything ended on the 31st when AF came and basically had a chemical. I am now wondering how soon after this will I be able to get pregnant again, have been trying for the past 10 months with no luck before this. Have any of you been prescribed any sort of progesterone before actually becoming pregnant? I am seeing a specialist in the 5th of Jan and will probably have a diagnosis. I really hope 2022 comes with extraordinary news and experiences, may you be blessed with your beloved and most awaited little souls!