O+ blood & cramps

Megan • Megan💄 Ortho asst🦷 fur mom to two GSDs🐶 3 miscarriages 👼🏼 Gracie Mae🌺
Hey yall. It's a doubt post here but looking for some insite! 
I know O- you need a shot but i read online that blood type O you have a harder time getting prego. Also, im O+ and so is my husband; thoughts?! 
Also, to my knowledge I ovulated a week ago... Last few days I've had some cramping but not period cramping or anything... I also started to have white creamy mucus on my panties... Thoughts? 
Thanks yall.