I have been trying for a baby for 7 months now. My husband and I are only 20 years old. We have been together for 5 years, married for one, and ready to begin a family. I have noticed that every time my period is due I have sensitive nipples, swollen breasts, nausea, fatigue, frequent urination, cravings, water retention, vertigo, headaches, and/or sensitivity to smells. Every possible sign of pregnancy and unfortunately I get my dreadful period everytime! I hope this is not the case for you. I have never noticed any of those pms symptoms until I started ttc! Weird... I wish you and your husband all the luck in the world because I know the feeling of wanting to be a mother. I read that having sex at least 2 or 3 times a week can increase your likelyhood of conceiving up to 60%. That becomes stressful and can put a toll on your sex life, just be dedicated. Good luck!!! Keep us posted...