Help!!!

Okay so my husband and I have a 3 year old daughter...we got pregnant 2 months into our relationship...no complications with pregnancy or delivery. I have lost over 50lbs I am healthy and active, my husband and I have been trying to conceive for about a year and a half now with no luck. I had my period at the first of the month and ovulate sometime around the 14th I have noticed some spotting that’s been going on for a couple of days now...this has never happened(can’t remember if it happened before my first pregnancy). I’ve looked it up and read that it’s normal to spot while going into ovulation...is this suppose to happen, since this hasn’t happened could it be the reason I haven’t been able to get pregnant, was it causing me to have a irregular cycle? Any and all helpful information would be greatly appreciated!