Completely unexpected positive result today...🌈😮🌈

I’m still in shock and honestly some mixed feelings right now, but I got a positive result at 3 o’clock this afternoon. DD calculator says October 16. Symptoms so far are sore breasts (really sore), light cramps and aches in my lower back. This is my fourth pregnancy: the first was successful with the birth of my son, the second ended early as it was ectopic and required removal of my left tube, and the third was an early miscarriage. I’m cautiously optimistic. Anyone else have these mixed feelings or a similar experience?