Freaking out! Is this real life?

Maggie • 31, married. Pregnant with rainbow baby #2 due March 28, 2020. Missed miscarriage March 2019 at 8 weeks. Miscarriage November 2018 at 4 weeks. Rainbow baby Aniela Jane born June 21, 2016. Miscarriage June 2015 at 5 weeks.
AF due tomorrow. Tested yesterday and BFN. Some slight cramping, figured AF was on her way. Tested today, is this my BFP?! We've been trying since August!