Is this my rainbow BFP?! 🌈😱

Nicola • I`m a 32 year old teacher from the UK. Had my rainbow baby in September 2017 after miscarrying twice. Had a chemical pregnancy in January and now TTC #2
I miscarried at 6 weeks in March but this morning I think I have a BFP?! This month I've had sore boobs but that stopped, and I feel completely normal. Trying not to get my hopes up because of what happened last time. I've been taking progesterone cream because I have a short leutal phase. I think I am roughly 12DPO. So excited and scared at the same time!!