Brownish tinge cm couple days after lh surge

Crystal
Soooo.... I got. Positive lh surge Thursday March 3. I called my infertility nurse to confirm if it was even possible to have a positive surge at cd34. 
She recommended to go Ahead and have times intercourse, which we did and take a pregnancy test in two weeks.  The following day Friday I have small cramps until today Sunday 3/6 along with brownish tinge string like cervical mucous when I went to wipe because it felt like I tinkled on myself but it was just cm discharge.
I've done research and it says it can be a possible implantation or early stage of conception or it can be an early sign of my period but I normally don't start my period until a 1- 1 1/2 weeks after ovulation 
(I have pcos so it's hard to tell with irregular cycles) 
Could it be possible it's an early sign of conception? 3 days after ovulation? 
Yesterday I was super bloated, somewhat gassy with odd burping reflexes . 
My husband particularly is too excited and impatient we've been TTC for 2 years.