Last month of TTC. πŸ˜’πŸ˜­πŸ˜” advice needed.

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Last month I was 14days late on my period! Finally went to my doctor and that same day I started spotting. She was determined I was pregnant and was having a miscarriage even though we didn't have a positive HPT or Blood work. I'm she told me I should start birth control to help my cramps that are excruciating and help regulate my period. This was after I told her I was trying to conceive. So I left the office sad and with a prescription for birthcontrols. My SO and I decided we will give it one last shot this month. If it does not happen we will start BC. I'm heart broken and want to know what you ladies think!