My cycle started Nov

My cycle started Nov. 29th. My fertile week was the 9th through the 15th of December. DH and I BD on the 9th, 11th, and 13th of Dec. I took a pregnancy test this evening around 9:30pm, and it came back as a faint positive. I'm 13dpo. I've been having poking pains in my abdomen, slight nausea and breasts are sore for the past few days. I'm considered high risk due to my age (38), over weight and suffer hypothyroidism. Please pray that this rainbow baby sticks. Thank you so much, Glow!