My boyfriend and I are trying to have our first , I'm 23 and he's 28, were both financially and emotionally ready for a baby. I'm having issues getting along with his sister. She's 19 and has one 2 year old already that I care for a lot and another on the way. She smoked that entire pregnancy and drank and smoked so far thru this one despite my efforts to get her to change her ways it's fallen on deaf ears. My question is am I just jealous because someone like this has no problem getting pregnant, yet I can't yet? I have so much anger inside towards her and I'm assuming most of it is jealousy....