10 dpo with very light positive hpt!

So today I am 10 dpo. I had a very, very light positive on the hpt and a definite positive on opk which means that there is hcg in my system. I have some lower abdominal cramping, some back pain, and a pulling sensation in my belly button. Other than that I feel ok. My boobs are tender on the sides a bit... but not as much as a few days ago. Oh dear, I really do hope this keeps going and doesn't go away in a few days. Are you in there baby?